... ProductMaterialNBR,NR,EPDM,SILICONE,FKM,CR,BR,SBR,HNBRCertificationISO 9001:2008 ISO 14001:2004Passd inspections of SGS, PONY, INTERTEK, CTI, etcEnvironmental ... according to your Requirement2.Designs and Specification are Accepted LIXIN NEW rubber product 2012