... and high strength 3. ISO9001:2008 certificat Tangshan Runfun Composite Materials Co., LTD, established in 2004, specialized in ... Turbine ventilator, ventilator fan, FRP profile, FRP gratings, FRP pipe, FRP tank.frp translucent roofing sheets 1. 10 years ... depends on consumers to choose voluntarily whether adding)Fiberglass: Taishan high-quality fiberglass, the content being no less than 30%. ...