... .Vacuum performance is good 3.Different size Flame Retardant O-Ring UsageMainly used for the automobile industry, because of its high ... gaskets ect. Item nameFlame Retardant O-Ring SizeCustomized/standard and nonstandardBrand NameFlame Retardant O-Ring MaterialNBR,HNBR,EPDM,SILICONE,VITON,FLS,FFPM ... zone, Haining City, Zhejiang province, China Zip314419 Flame Retardant O-Ring