1.material:EPDM,SBR,SR,NR,NBR,CR,FPM 2.USE:shock proof,4.property:ageing resistance,high quality etc. 5.good quality O RING1.Product/Service(We Sell): O-rings,U-type loops,Y-type loops,customized rubber items2.Material NR, SI, EPDM, NBR, SBR, FPM, IR,, BR, IIR, PU, etc, just as your request.3.Certification: ISO 9001:2000; SGS,PAHS,LFGB,ROHS,FDA,etc4.Size: customized5. Color: all available6. ...