... ,OEM service 3,Ozone resistance,aging resistance,weather resistance Rubber Seals Gasket:1, Material:NBR,CR,SBR,HNBR,ACM,EPDM,IIR,NR ... 30~90 shore A3, Property:high/low temperature resistance, oil and fuel resistance, water resistance,weathering resistance, Ozone resistance etc.4 ...