1. JINMENG W-SMC material FRP manhole cover features:
The FRP manhole cover is the high-strength W-SMC manhole cover and water grates researched and developed by the company in 2009. The FRP manhole cover is produced through forming a high-density whole by high-temperature moulding with high-strength W-SMC sheet moulding plastics(under the patent application number of 200910095562.5) being the base material. The composite valves are shaped like iron plates with a hard texture, and have made up for the defect of BMC reinforced products for inconformity with testing load...At present, the FRP manhole cover has been widely used in inspection wells of power, telecommunication, mobile communication, fuel gas pipes and chemical bases etc., and real estates, urban arteries, high-grade highways, expressways, freight transport piers and airports etc...