1) Many kinds of materials and processing methods available: a) EPDM b) NR NameRubber washerMaterialNBR,NR,EPDM,SILICONE,FKM,CR,BR,SBR,HNBRCertificationISO 9001:2008 ISO 14001:2004Passd inspections of SGS, PONY, INTERTEK, CTI, etcEnvironmental Complaince ROHS,REACH,etc Size CustomizeColorBlack or CustomizeWeight PendingTemperature-40°C to + 260°CHardness40-80 shore A LogoOEM & ODM orders are ...