... 14 years in China. ItemRubber partsDescriptionWidely used in bathroom product, valve, faucet, machine, hydraumatic, pneumatic and automobiles.Hardness: 45-90 ... or follow the color codeAdvantageGood Ozone resistance, aging resistance, high/low temperature resistance, acid/alkali resistance, weather resistance, abrasion resistance, voltage resistance and insulating resistance etc.SizeAny size will be ...