... produce NBR high ACN, low temp. rubber O ring, gaskets W/high quality&best pri Hydraulic Rubber O ring1) Available material : material for ... ,FPM,VITON(FKM)&Dow elastomers,Neoprene,HNBR,Natural rubber,SBR,NR,IIR(butyl rubber),ACM ect.NSF an KTW approved for material ... 0.651577 pc Molded partsBonded w/ metal sealDVGWCPKAQL 0.4 Quad Ring & Back Up RingWRASPPKC=0 Rubber Molded Parts Our factory is ...