... temperature: -35-+250degree Working pressure: <32Mpa rubber o-ringOur company mainly manufacture rubber o-ring,rubber hose,rubber seal, rubber conveyor belt ... on.Hardness:70Shore. Including AS568, BS1516, C92, P.G. and R standard etc. Description: Material: NBR, silicon rubber, fluorin rubber, PTFE ... : ≤32Mpa Working medium: hydraulic pressure oil, lube, air, water. rubber o-ring