O-ring in NBR,EPDM,Silicone,Viton Shore60,70,80,90 black,white, ... AS568,P.G.etc. ItemRubber O-ring DescriptionDescriptionWidely used in bathroom product, valve, faucet, machine, hydraumatic, pneumatic and automobiles.Shore 60±5 ... on the final product condition.Packing Spec.Standard packing: a. plastic bag inside with barcode; b. carton outside.Not-standard packing ...