rubber bush 1.material:CR,SBR ,EPDM.CR,NR,NBR,silicone,viton 2.size: proposal 3.hardness:60-75A rubber bushusing: mainly used to seal oil and water proof ,anti-corrosion gas, prevent the leak of othe gas.feature:1.High temperature seals 2.Resistant high-pressure seals 3..Corrosion-resistant seals 4.Wear ring Rubber Bush