The company specializes in the production and sale covers, rain grate (water grate), trench cover, bellows, power management and other municipal facilities building materials, road safety Guizhou Run is specialized in municipal roads building materials sales of integrated science and technology enterprises. Management: manhole covers, composite resin covers, rain grate (water grate), trench cover, steel grating, PE water supply pipe, HDPE double wall corrugated pipe, HDPE steel reinforced pipe, CPVC power protection casing, glass, steel clip sand pipes and other municipal roads. Since the market, due to quality and cheap, by the majority of users of all ages, the company strictly control product quality, depending on the quality of life; sincerely look forward to working with you! Resin composite covers installation standard composite resin covers installation, commissioning program installation, commissioning: To ensure proper use of new mold inspection covers, to focus on quality of the installation, so that accurate size, install sturdy, easy to open, looks clean and beautiful, according to the new manhole covers technical standards, formulated the following installation rules: 1, water covers the brick masonry, shall be determined in accordance with the Design Institute covers the size of their inner diameter or length × width (such as by real kind of construction would be best), but also the corresponding reference standards. 2, when the cement pavement wells seat mounting on wellhead brickwork placement of C25 20CM thick concrete ring beam disappearing, we must adhere to the Quartet really well base, the overall smooth, not loose and covers the outer casting width of 40cm The concrete protective ring (such as cement pavement, but also cast a wide circle of 20cm concrete protection and reinforced with steel) maintenance period over 10 days. 3, the installation of covers on the asphalt, we must pay attention to avoid direct rolling well base construction machinery on the road when the whole cast, and should be well on the road reserved seat slightly larger than the hole (wells ≤ manhole), in After the asphalt Puwan placement. (After all-concrete pavement should Puwan real grind stone in two installation) to ensure the quality of the covers positioned to extend service life. 4, in order to maintain the beautiful appearance of the surface cover, surface texture and legible, the application of asphalt pavement construction in thin iron sheets covering the covers or waste oil and other brush cover up, to prevent the bitumen in the oil injection wells. When the cement pavement construction, application of plastic membrane covers cover to prevent contamination covers cement mortar surface, damaging the surface pattern, handwriting. Also finished the day in the construction of wells with water to clean the surface. 5, cast concrete or asphalt base will be well after laying, should be promptly cleaned covers open, avoid mortar or asphalt poured inspection covers the seat into one, so as not to affect the future open. Please be sure the above construction units note, if other matters, please contact me