Composite covers the installation process: When installing composite covers to follow the following four steps: 1. Prior to installation, the covers should be neat solid foundation, according to the size of manhole covers and the inside diameter to determine the length and width. 2, when the cement pavement composite covers installation, pay attention to use the concrete pouring good Xinzhou composite covers masonry materials on the wellhead, but also to establish a concrete protective ring at the periphery, about 10 days for maintenance. 3, install composite covers in asphalt pavement construction machinery should be taken to avoid direct rolling seat covers and well, in order to avoid damage. 4, in order to maintain the beauty and covers writing, a clear pattern, pouring asphalt and concrete pavement must be careful not to stain covers. Ductile iron manhole covers are generally divided into round and square, in terms of urban highways huangpi plastic composite covers, generally circular, because the circular covers easy to tilt, can better protect the safety of pedestrians and vehicles. Use round, mainly on account of circular covers through its center of each is the same diameter length jiangxia plastic composite covers, so if the covers were passing vehicle rolled on, because no matter how rolling onwards, its diameter will be more than The following wellhead slightly wider, covers not fall wellhead go. Xinzhou composite covers material | was Wing Technology (certified) | East Lake composite covers were provided by the Wuhan Environmental Protection Technology Co., Ltd. Rong. Environmental Science and Technology Co., Ltd., Wuhan was Rong (www.crkjhb.com) (www.crkjhb.com) is Wuhan, a leader in environmentally friendly products processing, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In the form of wing technology leadership with the staff warmly welcome all inquiries negotiations to create a better form-technology future. You can also access (www.crkjhb.com/supply_details_45046100.html), for more information about the company.