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