... (CR),Styrene(SBR) ,CR,ACM,PU etc.Application: O ring is widely used in different industries: Auto, Machinery, Electronic, ... conditioner, Sanitary ware and so on.We have O ring tooling 2000sets in house, our products conform to AS568, ... Gas Impermeability resistance, Oxygen resistance, Ozone resistance, Weathering resistance, Flame resistance, Heat resistance, Low temperature resistance, Oil and fuel ...