Composite covers installation considerations As technology continues to develop, as a common material covers municipal and construction has been rapid development, here to tell you about the composite covers installation considerations: First, to maintain cover beautiful appearance, surface pattern and legible to apply asphalt pavement construction metal or wood covered book on the covers, the covers can also be black waste oil and other brush cover up, to prevent the bitumen is sprayed onto the covers. Second, covers masonry brickwork, shall Design Institute covers sizing the inner diameter or length X width, radius, but also the corresponding reference standards and covers the periphery of the casting of concrete 40cm wide circle of protection, the maintenance period to more than 10 days. Third, asphalt pavement When mounting the covers, be sure to avoid direct construction machinery rolling well base, in the road the whole cast, and should be set aside in the road hole slightly larger than the well base, asphalt Puwan after placement. Fourth, the concrete will be well base After casting or laying asphalt, should be promptly cleaned covers open, avoid mortar or asphalt will pour manhole covers and seat into one, so as not to affect the future of Guizhou Run An open road facilities Co., Ltd. Website: http: //www.run-an.net Contact: Mr. Tang Mobile: 18785145767 E-mail: tsjjst@foxmail.com QQ: 382729388 Guizhou Yun security road facilities Co., Ltd. is a company specializing in the production facilities of municipal road operation of the integrated company Guiyang ductile iron covers, Guiyang composite resin covers Guiyang rain grate (water grate), Guiyang trench cover, Guiyang steel grille, Guiyang PE pipe, HDPE double wall corrugated pipe Guiyang, Guiyang steel reinforced HDPE pipe, CPVC power protection sleeve Guiyang, Guiyang HOBAS pipes and other municipal roads Tang: 18785145767