... main product are molded rubber parts products like O rings, rubber seals, rubber band, oil seal,water seal and rubber gaskets etc. Itemsoft ... packing: follow customers' requirement Rubber O Ring Gasket1) Available material : NBR,SILICONE,VITON(FKM),Neoprene,HNBR,Natural rubber,EPDM.2) All manufacturing ... temperature resistance, oil resistance, anti-ozone and aging, wearing NBR flat rubber gaskets