... ,various shape and size Auto Rubbers Part Features,1) Available material : material for Silicone NBR,Fsil,VITON(FKM)&Dow elastomers,Neoprene,HNBR,Natural ... ,IR,IIR(butyl rubber),ACM ect.NSF an KTW approved for material EPDM.2) All manufacturing processes confirm to the ISO/TS16949 ...