Sewage cover has a beautiful appearance, the best drainage, hot-dip galvanized, anti-theft design, saving investment, high strength and other characteristics. In the production process will be carried out in non-slip and abrasion treatment. Its non-slip and wear far better than ordinary metal cover and wood cover, plastic covers and so on. Good closure performance, safety, fiberglass cover closed is superb. Non-conductive, thermally non-conductive, high corrosion resistance. 4.21 Sewage cover everyone got to know, if you have any other questions, please visit our website www.jdlfrp.com