PU parts: 1: ISO 9001, 14001 2: Used in auto appliance, machine industry,etc. 3: Good sealing and damping fun PU buffering, PU raised edge and flange conveyor spare part : 1. Main materialPU,also can use Natural rubber, Styrene-butadiene rubber, Nitrile rubber,EPDM,Neoprene,Butyl Rubber,SILICONE,Fluorocarbon(FKM),Chlorohydrine rubber and Methacrylate rubber, etc.2. CertificationISO 9001, 14001, ...