O-rings, o ring cord, rubber rope,backups, quad rings, square rings, o-cord, square cord,,etc. for NBR, VITON, SILICON,,,,ETC ... Viton O-RING CORD, viton RUBBER ROPE,viton rubbe ... SILICONE, EPR, NEOPRENE, TEFLON, POLYURETHANE, POLYMYTE MATERIALS.Only cooperate with the factories or wholesalers.we can supply the different type ...