O-rings: 1) Waterproofing 2) Oil resistant 3) Manufactured according to customers' requirements Features: O-Ring 1) Material: Silicone, EPDM, nitrile, neoprene, Viton, SBR and NR; 2) Long life and strong aging resistance; 3) Square rings, quad rings, back-up rings, V-rings, T-seals, wear rings, piston and rod seals available; 4) Any color and size are available as per customer's requirements; 5) ...