... etc. 3: Good sealing and damping fun PU buffering, PU raised edge and flange conveyor spare part : 1. Main materialPU, ... EPDM,Neoprene,Butyl Rubber,SILICONE,Fluorocarbon(FKM),Chlorohydrine rubber and Methacrylate rubber, etc.2. CertificationISO 9001, 14001, ... have excellent wearing resistance, high mechanical strength and oil resistance. And with good absorbing vibration function, sound insulativity, ...