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Shandong Vanse Machinery Technology Co., Ltd. is a domestic set manufacturing, sales, technical services in one, specializing in concrete laser leveling machine,Concrete Floor Surface Grinder enterprises. The company is located in the ancient Kyushu one of Shandong Yanzhou, the geographical location of the more, convenient transportation. Has passed National High-tech Enterprise certificationIS09001 quality certification, ISO1400 environmentalProducts have CE certification and SGS and BV approved factory checking reportsthe engines for machines have EURO 5 and EPA, emission meet EU and USA standard. With the rapid development and prosperity of the floor industry, laser leveling machines are more and more used in floor construction, especially in the construction of large-area concrete floors, the use of laser leveling machines can greatly improve construction efficiency. Vanse large-scale telescopic arm laser leveling machine adopts the most advanced laser system and full hydraulic control system to make the concrete construction ground leveling with higher precision and stronger compactness, and to meet high-standard construction requirements at the same time of high-efficiency construction. Another major feature of Vanse large-scale telescopic arm laser leveling machine is that it saves labor and improves efficiency. It can shorten the construction period by two thirds and reduce labor by more than half. The key quality is better, the cost performance is very high, and the maintenance cost can also be reduced. so for the general construction team, the cost is not too high, and the price of the floor industry is also acceptable. Leasing or buying and selling large laser levelers is a very good choice. Shandong Vanse Machinery has experienced senior engineers who serve customers wholeheartedly, develop together, and cooperate for win-win results.

Construction technical requirements of concrete laser leveling machine When we use the concrete laser leveling machine for construction, we need to understand some relevant technical requirements, such as the requirements for concrete or formwork, and the degree of coordination of various details, etc. There are also certain requirements. These problems need to be properly arranged before they can be directly adjusted Otherwise, there may be some problems during the construction process. 1. Requirements for concrete and formwork 01. Concrete must be produced, conveyed or pumped to the flooring project site by commercial concrete production plants. 02. Concrete specifications: C25~C30 concrete, the strength of which is not less than 25MPa in 28 days, according to the design requirements. 03. Water-cement ratio: no more than 0.5, no water can be added during the feeding process. 04. Cement: Use ordinary Portland cement with a grade of not less than 42.5. 05. Aggregate: Well-graded aggregate should be used. Crushed granite or pebbles are used as coarse aggregate, and the maximum diameter is not more than 25mm. The fine aggregate is clean river sand with a fineness modulus of 2.4-2.7. 06. Concrete mix ratio: the amount of cement is not less than 350Kg/m3. In order to avoid surface quality problems, the sand rate should be controlled at 35% to 40%. 07. Concrete slump: 14±2cm, maximum 16cm. 08. Setting time: The initial setting time should be controlled within 3-5 hours. In order to avoid the excessive deviation of the surface elevation affecting the joints, the formwork should be steel formwork. The height of the formwork should be controlled within +0 and -2mm, and the steel formwork should be within 1-1.2 meters from the surrounding walls. 2. Construction corporation requirements 1. The concrete feeding speed should be determined according to the ground thickness and pouring area to determine the minimum hourly feeding speed. For a floor with a thickness of 200 mm, if the width of one-time pouring reaches 40 meters, the minimum feeding speed should reach 40 cubic meters per hour, otherwise there will be cold joint problems, which will affect the quality of ground construction. 2. Manually coordinate the concrete sent to the platform, and workers need to remove it as soon as possible and roughly level it. In addition, the area around the formwork, the wall, the column, the trench, the equipment foundation, the floor drain or the surrounding of the pipeline and other equipment that cannot be leveled requires manual cooperation for local leveling. Generally, 3-4 workers are required to cooperate with the construction (provided by Party A). 3. Other precautions In order to ensure the flatness of the ground, attention should be paid to: 1) The slump of concrete sent to the platform must be consistent each time. 2) Ensure that the concrete feeding speed reaches 40 cubic meters per hour or above, and the initial setting time of each batch of concrete must be consistent. 3) Ensure that the formwork elevation is accurate and cannot be disturbed during construction. 4) Environmental cooperation. The concrete floor that has just been constructed cannot be exposed to sunlight, wind, rain, etc. that are unfavorable to concrete health. 4. Other requirements: A. In order to avoid random cracks in the floor, the cutting time of shrinkage joints should be carried out as early as possible (within 24 hours). B. At the same time as the construction of the laser leveling machine, there should be no electric welding machines on site, and no reflective objects (such as glass windows). C. The foundation must reach a certain hardness to ensure that the laser leveling machine does not collapse when working on the ground. D. The height of the ground in the factory building shall be calibrated by Party A, and the points must be evenly distributed, and there must be no error in the levelness. E. Pouring concrete must be operated according to the requirements of Party B's technicians.

The "beauty" work of the ground depends on the laser leveling machine (2) In detail, after reading the previous article, you already know a little about laser leveling machines. Some environments that require relatively high ground flatness, such as: shopping malls, airports, etc., and it is no longer suitable to continue construction by manually grinding the ground Because this will greatly affect the efficiency and quality of the work, the concrete laser leveling machine alone will take the lead. 2. Reasonable workload The size and nature of the working load of the concrete laser leveling machine have an important influence on the loss process of the machine. In general, the wear of parts increases proportionally with the load. Wear increases when a part is subjected to higher than average design loads. In addition, when other conditions are the same, the stable load has less wear, less failure and lower life than the dynamic load. Ensuring the normal working load mainly depends on the operator's use of the concrete laser leveling machine. One must pay attention not to work under the maximum load that the machine can bear, and use the machine within its capacity. As the manager of the concrete laser leveling machine, when appointing the operator, the random information and operation manual of the concrete laser leveling machine should be handed over to the operator, so that they can normally grasp the mechanical properties and operating procedures, and should not be arbitrarily assigned Relevant information is withheld. Second, try to ensure the uniform addition and subtraction of the mechanical load, so that the machinery is in a relatively gentle load change. Specifically, it is necessary to increase and decrease the throttle more evenly to prevent the engine and working devices from fluctuating greatly. 3. Use lubricating oil scientifically According to statistics, more than half of the failures of concrete laser leveling machines are caused by poor lubrication. Due to the precision of the parts of the concrete laser leveling machine, good lubrication can maintain a normal working gap and a suitable working temperature, thereby reducing the wear of the parts and reducing mechanical failures. Normal and reasonable lubrication is one of the effective measures to reduce mechanical failures. For this reason, one is to choose lubricants reasonably. During use, neither low-grade lubricants nor other types of lubricants can be used instead, let alone inferior products. The second is to always check the quantity and quality of lubricants. 4. Timely maintenance and repair Various failures will inevitably occur during the use of the concrete laser leveling machine. Among these failures, some failures may have a slight impact on mechanical equipment, while some are more serious, and may even cause major accidents such as machine crashes and human deaths. Experience has shown that major mechanical failures are often caused by minor failures. The reason is that the timely disposal of minor faults has been neglected. Therefore, for mechanical failures, regardless of their size, they should be eliminated in time, so as to maintain the normal performance of the machinery and reduce the possibility of causing larger failures.

VANSE Group's excellent after-sales service team serves every customer with heart, builds the VANSE brand with quality, and makes products go global. The large-scale 360 degree laser leveling machine is equipped with advanced laser system and full hydraulic control system, which makes the concrete construction ground more precise and dense, and meets the high standard construction requirements while efficiently constructing. The application of a large 360 degree laser leveling machine will ensure the achievement of various high standard engineering construction standards, comprehensively improve the quality of engineering construction, and create higher value for customers. A large 360 degree laser leveling machine is a device that uses the laser emitted by the transmitter as the reference plane, and controls the leveling head in real-time through the laser receiver on the laser leveling machine, thereby achieving high-precision and rapid concrete leveling. It is developed for modern industrial factories, large shopping malls, warehouses, and other large areas of cement concrete floors, which have increasingly high requirements for ground quality such as strength, flatness, and levelness. VANSE Group engineers serve Turkish customers. The telescopic arm of a large 360 degree laser leveling machine is 6 meters long, and the leveling work width is 4 meters. It can complete the leveling of 24 square meters of concrete per minute. The flexible and efficient hydraulic control system can control the height of the scraper and fabric rotation, maintaining the flatness of the leveling layer. Another characteristic of the 360 degree concrete laser leveling machine is to save labor, improve efficiency, shorten the construction period by two-thirds, and reduce more than half of the labor. Large 360-degree laser leveling machine is your best choice!

The "beauty" work of the ground depends on the laser leveling machine (1) It has to be admitted that using a concrete laser leveling machine to smooth the ground is a more scientific method, which can greatly reduce the labor burden of the staff and save time and effort. However, when operating the equipment, it is still necessary to reduce the impact of some harmful factors on the normal use of the machine. 1. Minimize the influence of harmful factors 1. Avoid impurities For concrete laser leveling machines that work in harsh environments and complex conditions, first of all, use high-quality, matching parts, lubricating oil, and grease to block the source of harmful impurities; secondly, do a good job of mechanical protection on the job site Work, ensure that the corresponding mechanism can work normally, and prevent various impurities from entering the interior of the machine. For machinery that breaks down, try to go to a regular repair place for repairs. When on-site repairs, protective measures must also be taken to prevent the parts replaced during on-site repairs from being polluted by impurities such as dust before entering the machine. 2. Applicable temperature During the use of the concrete laser leveling machine, it is necessary to prevent overload operation at low temperature, ensure the normal operation of the low-speed preheating stage, and make the machine reach the specified temperature before driving or working. Do not ignore other problems because there are no problems at that time. Important role; Second, to prevent the machine from running at high temperature, check the values on various thermometers frequently during the operation of the machine, stop the machine immediately for inspection if any problem is found, and eliminate the fault in time. If the reason cannot be found for a while, the machine must still work with the disease without treatment. In normal work, pay attention to check the working condition of the cooling system. For water-cooled machines, it is necessary to check and add cooling water before work every day; for air-cooled machines, the dust on the air-cooling system should also be cleaned regularly to ensure the smooth flow of cooling air ducts. 3. Anti-corrosion During use, management and operators should take effective measures according to the local weather conditions and air pollution conditions at that time to reduce the impact of chemical corrosion on the machinery, with the focus on preventing the intrusion of rainwater and chemical components in the air to the machinery.

Can a laser leveler be used to make a "three super" floor? The "three super" floor is the ideal goal we have always wanted to achieve, but there is no way to achieve this standard with traditional operation methods. After all, the continuity of manual operations is not strong and it is very prone to operational errors. Can the laser leveling machine meet the standard of this "three super" floor? The so-called "three supers" are super flat, super strong and super provincial. Since the 1990s, since the continuous promotion of "clear water concrete" (building) ground and colored wear-resistant (building) ground, after several years of research and exploration and continuous improvement, the process has been integrated through the concrete laser leveling machine. Perfect, the "three super" floors constructed with our company's series of products have reached the domestic or international first-class level. 1. Super flatness: Through the combination of concrete laser leveling machine and professional and precise personnel, the flatness level of (floor) ground can be raised from the current specification of 2 meters by 4mm to 2 meters by 2mm. , (Building) The level of the ground can reach within ±5mm/100m through the laser detection control of two laser sweepers and the imported laser leveling machine. 2. Super strength: Through the professional floor treatment equipment-single-disc and double-disc drive troweling machines several times, the (building) ground forms a real "clear water concrete" surface layer. It is also possible to sprinkle and add color hardening agent during surface construction or to brush liquid concrete sealing and curing agent on the surface of the original slurry "clear water concrete" to improve the surface strength again and truly realize the super strong surface. 3. Ultra-saving: Through the simultaneous construction of the concrete on the (floor) ground, the floor (ground) method is completed at one time, which not only saves the materials, labor, and machinery of the second method, but also avoids the damage caused by the second method. "Empty drums, cracks, peeling, sanding" and other common quality problems; it also reduces the load generated by the materials used in the secondary method between floors, saves the delay in the construction period caused by the secondary method, and greatly saves the construction period. The rental costs of turnover tools and various equipment caused by the elongation have saved a lot of costs and achieved economic benefits created by super-savings. After calculation, the secondary method is based on 6-8cm concrete, and the cost of labor, machinery, and materials required should be more than 40 yuan/m², even if the cost of finished product protection is deducted, the cost savings will be more than 30/m². By solving the concrete surface layer at one time, all the "common quality problems" caused by the second method are completely eliminated. The "three super" floor is flat, clean, dense, high-strength, one-layer overall, with reduced cost, shortened construction period, and absolute durability. It should be said that there is no better method to replace it, whether domestic or foreign.

Is it necessary to use a laser leveling machine? Is it necessary for concrete laser leveling machine to exist in our life? Answer: Of course there is. For some small construction sites, it is not impossible to rely solely on manual work, but once you reach a large shopping mall or a parking lot, you don't need to use machinery for construction, which not only guarantees quality but also saves time. Laser leveling machine is an important concrete engineering machinery and equipment. It is widely used in the construction of large-area concrete floors such as modern industrial plants, large shopping malls, freight yards, airports, and squares. Levelness requires good construction. In the context of economic globalization, enterprises are under increasing pressure and challenges. Traditional construction has a large amount of labor and low production efficiency, which has always restricted the healthy and rapid development of the flooring industry. Therefore, it is urgent to promote the use of high-efficiency and intelligent laser leveling machine products. This is not only the need for enterprises to adapt to social development, but also the inevitable requirement of the international development trend of the flooring industry. The use of laser leveling machines to make the ground has a high degree of automation, low labor intensity, saving templates and channel steel, and reducing labor input. Concrete laser leveling machines are divided into walk-behind and car-mounted types, which are very easy to operate and are used in concrete floor construction. The heavy manual labor is changed to mechanical paving, vibrating, leveling, slurry extraction, and surface plastering, which greatly reduces the number of operators and greatly reduces the labor intensity. The realization of one-time paving construction in large-scale blocks makes it unnecessary to support the formwork in the middle of the blocks. While reducing the support formwork and channel steel, it also further reduces the construction process and speeds up the construction progress. Therefore, using laser leveling machine products to make the ground can effectively save labor and reduce long-term operating costs. In short, with the increase of large-area and high-quality floor projects such as modern industrial plants, convention centers, squares, airports, etc., traditional construction techniques and methods are difficult to meet the requirements. For example, in terms of construction techniques, advanced construction equipment, That is, the concrete laser leveling machine can not only shorten the construction period, but also ensure the construction quality to a large extent. This kind of high-grade ground can guarantee normal use for more than 20 years, which can greatly reduce the use and maintenance costs. The concrete laser leveling machine is in There will be more and more applications in large-area floor construction.

Detailed explanation of concrete laser leveling machine pouring leveling construction and leveling control matters 1. Preparation 1.1 After the base layer is processed, the equipment of the laser paver is debugged, and the fixed reference level point is drawn according to the original level point; the non-woven fabric is laid, the side formwork is supported, the laser transmitter is erected, and the ground level is introduced according to the original level point. Laser leveling machine. 1.2 Conveying concrete Commercial concrete is used, and the commercial concrete is transported to the entrance and exit of the garage by tank truck, and then transported to the construction site by a three-wheel dump truck. 1.3 Standard calibration Use a hand-held laser receiver to check the elevation of the floor, introduce the elevation into the laser paver, and adjust the reference point (±0.00) on the leveling machine. 2. Concrete paving Pouring steps: (1) After the formwork is supported, the warehouse should be cleaned one day in advance before pouring concrete, rinsed and soaked with water. When pouring is approaching, drain the open water and sweep the cement slurry or interface agent. At this time, no obvious water accumulation is strictly prohibited. If there is, it must be resolutely removed before paving concrete. (2) After the concrete is put down, it should be preliminarily leveled, and the leveling height should be 3 cm thicker than the elevation. Then level it with a laser paver. The corners that cannot be leveled can be leveled with a gasoline leveler or manually. (3) When the warehouse near the wall is being poured, after the leveling machine walks over, it must be scraped with a scraper in time. and so on. (4) For areas where concrete mixer trucks cannot be driven to the site, tractors should be used to transfer concrete. After the pouring is completed, the floor finishing construction begins when the concrete is initially set. (5) When the warehouse near the wall is being poured, it must be leveled with a scraper in time after the leveling machine has passed by. and so on. (6) For areas where concrete mixer trucks cannot be driven to the site, tractors should be used to transfer concrete. After the pouring is completed, the floor finishing construction begins when the concrete is initially set. 3. During construction, the laser signal received by the receiver of the laser paver (frequency of 10 times per second) automatically adjusts the elevation in real time to ensure that the construction elevation is always at the set standard. Because the laser transmitter is fixed after being set up, it can ensure that the construction of a large area of ground does not produce cumulative errors. 4. During the construction, the operator uses a hand-held laser receiver to detect the ground after the machine is constructed, and again ensures that the flatness error is within the controllable range. If there is anything you don't understand, you can consult us, and we will continue to answer for you.

Laser leveling machine usage skills and material ratio The traditional artificial road leveling technology gradually fades out of people's vision. In this era of rapid development, road surface laser leveling machines have brought unprecedented development prospects to road construction. Through human-machine cooperation, road leveling technology has reached a high level. . When using the laser leveling machine, of course, you must have certain computer operation skills, and you must also have certain small skills. After all, the fully intelligent robot laser leveling machine has not yet come out, and 12 years of professional production technology will explain how to use it for you. Tips for laser levelers. If you want to build roads with good quality, of course, you must pay attention to the choice of concrete. Concrete must be produced, conveyed or pumped to the flooring site by a commercial concrete production plant. Concrete specifications: C25~C30 concrete, the 28-day strength is not less than 25MPa, determined according to the design requirements. Water-cement ratio: not more than 0.5, no water can be added during the feeding process. Cement: Use ordinary Portland cement with a grade of not less than 42.5. Aggregate: Well-graded aggregate should be used. Crushed granite or pebbles are used as coarse aggregate, and the maximum diameter is not more than 25mm. The fine aggregate is clean river sand with a fineness modulus of 2.4-2.7. Concrete mix ratio: the amount of cement is not less than 350Kg/m3. In order to avoid surface quality problems, the sand rate should be controlled at 35% to 40%. Concrete slump: 14±2cm, maximum 16cm. Setting time: The initial setting time should be controlled within 3-5 hours.

Quality Control And Precautions In The Construction Process Of Concrete Laser Leveling Machine Concrete laser leveling machine is an indispensable equipment in construction machinery, and it is indispensable in the construction of building floors. Doing the following points well during construction will have a great effect on improving the productivity and construction quality of the concrete laser leveling machine. 1. Line setting and leveling on the wall (column): Since the laser leveling machine on the side of the wall cannot be touched, manual leveling is required within 40 cm along the side of the wall (formwork), so line setting is required as a reference for manual leveling . 2. Set up formwork (steel formwork is recommended) along the scope of pouring on the same day, reserve holes for dowel rods, and control the elevation of the formwork to avoid large deviations in the flatness of the joints of different warehouses. 3. Set templates or thin sheets along the walls, equipment foundations, columns, etc. (thickness and position are determined according to design requirements), and leave separation joints to avoid cracking of the concrete floor. 4. Laser transmitter erection: (1) The laser transmitter should be erected at the best position, and there should be no clips to be tightened; (2) There should be no large vibration sources around; (3) Reasonably set the concrete paving direction and leveling direction, and determine a reasonable construction walking route of the leveling machine to avoid leveling blind spots. (4) Feeding: The concrete conveying speed should be guaranteed to be a certain amount, and the feeding speed should be uniform, and the pause interval should be reduced in the middle to prevent cold joints and affect the progress of the project. The slump and initial setting time of the concrete sent to the site each time must be consistent. The concrete slump should be controlled at 14~16cm, and the initial setting time should be controlled at about 3 hours. Note: Some content of this quality control is for reference only, and the actual construction should be formulated according to the floor design requirements and the characteristics of the construction site.

Vanse Laser Leveling Machine – Strive To Create High-End Ultra-Flat Ground With the continuous advancement of science and technology, in the construction of modern building floors, more and more things are not manually operated, but replaced by more efficient machines. For example, the laser leveling machine produced by our VANSE Machinery is a Such a machine is an excellent product to replace labor. The concrete floor poured out by VANSE Concrete Laser Leveling Machine is smooth, compact and time-saving. It can more than double the efficiency of manual laying and pouring the ground, but it greatly saves manpower. The solidity is three times that of artificial paving, making the cement floor more solid and dense. Therefore, this machine is regarded as the first choice for ground paving by many construction teams. Today, VANSE Machinery will summarize the construction advantages of concrete laser leveling machines. The biggest feature of our concrete laser leveling machines is to save labor and improve efficiency. Let's take a look at the specific and more detailed aspects: 1. High construction quality The laser leveling machine can level the ground, which can significantly improve the flatness of the ground. For the ground constructed by the laser leveling machine and the traditional method, 22 points are detected (one point every 5mx4m), and the average flatness is 1.3mm and 4.1mm respectively. Laser leveling The leveling quality of equipment such as leveling machines is more than three times higher than that of traditional methods. The laser leveling machine can realize large-scale construction, reduce a large number of construction joints, reduce the slump of concrete, and ensure the strength of concrete, so that the ground has good integrity and is not prone to cracks. 2. Fast construction speed Using laser leveling machine and other equipment to construct large concrete slabs can improve the work efficiency by 3 times compared with the traditional beam vibrator method, save 30%, and can complete 3,000 square meters per day on average. It is especially suitable for concrete surfaces with simple shapes and large surface areas. construction. 3. Reduce the amount of side formwork support and dismantling Based on the statistics of 20,000 square meters of concrete pavement, the traditional method needs to dismantle 5800m of side formwork, but with advanced equipment such as laser leveling machine, the dismantling is only 2500m, reducing the support modulus by more than 74% 4. High degree of automation and low labor intensity The use of laser leveling machines and other equipment turns heavy manual labor into mechanical paving, vibrating, leveling, slurry extraction, and surface plastering, reducing the number of operators by 30% and reducing labor intensity. 5. High economic benefit The application of laser leveling machine and other equipment saves the cost of 2-3 yuan/㎡ compared with the traditional process, with fewer seams and lower maintenance costs in the later period, so that the economic benefits are significantly improved. Advanced equipment such as laser leveling machines are especially suitable for projects such as docks, storage yards, expressways, airports, large squares, parking lots, and municipal roads that have relatively simple shapes, large amounts of action, and high construction quality requirements. Now our laser leveling machine is very mature. Customers who have bought it have used it for a period of time. During the return visit, our sales staff all said that it has been used very well. We are honored and very happy. The user's feedback that the concrete laser leveling machine is easy to use comes from their own heartfelt words. Only after using a good product can they have the most personal experience. VANSE laser leveling machine – strive to create high-end ultra-flat ground!

How to use the laser leveling machine? How many steps? The laser leveling machine manufacturer will introduce to you what to do with the equipment: check the equipment before using it to ensure that all functions of the equipment are normal, and adjust the reference point of the laser before it can be used , After paving, technicians are required to evaluate the ground, and it is completed only after the flatness is determined. 1. Preparation (1) After the base layer is processed, the equipment of the laser paver is debugged, and the fixed reference level point is drawn according to the original level point; the non-woven fabric is laid, the side formwork is supported, the laser transmitter is erected, and the ground is ground according to the original level point. The elevation is introduced into the laser leveling machine. (2) Conveying concrete Commercial concrete is used, and the commercial concrete is transported to the entrance and exit of the garage by tank truck, and then transported to the construction site by a three-wheel dump truck. (3) Standardization and verification Use a hand-held laser receiver to check the elevation of the floor, introduce the elevation into the laser paver, and adjust the reference point (±0.00) on the leveling machine. 2. Concrete paving Pouring steps: (1) After the formwork is supported, the warehouse should be cleaned and soaked with water one day in advance before pouring concrete. When pouring is approaching, drain the open water and sweep the cement slurry or interface agent. At this time, no obvious water accumulation is strictly prohibited. If there is, it must be resolutely removed before paving concrete. (2) After the concrete is put down, it should be preliminarily leveled, and the leveling height should be 3 cm thicker than the elevation. Then level it with a laser paver. The corners that cannot be leveled can be leveled with a gasoline leveler or manually. (3) When the warehouse near the wall is being poured, after the leveling machine walks over, it must be leveled with a scraper in time. and so on. (4) For areas where concrete mixer trucks cannot be driven to the site, tractors should be used to transfer concrete. After the pouring is completed, the floor finishing construction begins when the concrete is initially set. (5) When the warehouse near the wall is pouring, after the leveling machine walks over, it must be scraped with a scraper in time. and so on. (6) For areas where concrete mixer trucks cannot be driven to the site, tractors should be used to transfer concrete. After the pouring is completed, the floor finishing construction begins when the concrete is initially set. 3. During construction, the laser signal received by the receiver of the laser paver (frequency of 10 times per second) automatically adjusts the elevation in real time to ensure that the construction elevation is always at the set standard. Because the laser transmitter is fixed after being set up, it can ensure that the construction of a large area of ground does not produce cumulative errors. 4. During the construction, the operator uses a hand-held laser receiver to detect the ground after the machine is constructed, and again ensures that the flatness error is within the controllable range. A complete and perfect brand of course needs good word-of-mouth from local users, and the establishment of word-of-mouth requires long-term accumulation. If you want to be a good company, you must be responsible for customers and think about customers, and bring profits to customers better. This is the most important thing.