... ) Available material : NBR,SILICONE,VITON(FKM),Neoprene,HNBR,Natural rubber,EPDM.2) All manufacturing processes confirm to the ISO9001,SGS,ROHS,FDA ... request. Available in various sizes and colors.5) Available indiffernt kinds of silicone gaskets,silicone seals,custom molded seals.6) Our ... temperature resistance, oil resistance, anti-ozone and aging, wearing NBR flat rubber gaskets