... 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 ... seals,o rings, wipers, oil seals, piston seals, v packings, rod seals, wear rings, piston cups,,,,etc.Covered the most BUNA, FLUOROELASTOMER ... . viton seals, FKM seals, silicone seals, NBR seals,o-ring cord, rubber sheet