China Composite Manhole Covers Features China Manhole Cover, China Manhole Cover Suppliers . China Cast Iron Manhole Cover manufacturers SMC/BMC product suppliers. Load Rate: A15 - D400。Good Quality。CE,SGS, BV。Fast Delivery。Passed loading test in。Types: SMC Round Manhole Cover, SMC Sewage Manhole Cover, SMC Manhole Cover。 SMC Round Manhole Cover 1.Against Theft This product is made from high strength composite materials and the reinforcing bar by the high temperature mould,it is non-metallic and valueless,it has no value of recycling,thus completelysolve the problems caused by theft. 2.High loading capacity Its main fiberglass and unsaturated and components. Loading capacity are A15,B125,C250 D400. 3.Free design Such as color,logo,panel and dimension can be designed according to the requirement of customer. 4.Strongly Safety This product is lined with reinforced steel support,strong flexibility,no overall risk of crushing and present falling. 5.High and low temperature resistance Excellent insulator against heat from -40ºC–200ºC. 6.Long life Minimum lifespan is 30 years of free maintenance. China Composite Pit cover Manufacturer and Exporter