... ageing resistance 2.Vacuum performance is good 3.Different size Flame Retardant O-Ring UsageMainly used for the automobile industry, because ... have kinds of material : SBR,CR,NBR,HNBR,EPDM,SILICONE,VITON,NR,FFPM,etc.2.We offer OEM, We can ... ect. Item nameFlame Retardant O-Ring SizeCustomized/standard and nonstandardBrand NameFlame Retardant O-Ring MaterialNBR,HNBR,EPDM,SILICONE,VITON,FLS,FFPM, ...