Gasket 1.Certificate:ISO 9001:2000 2.Material:NR,SI,EPDM,NBR,PU,etc 3.customer's design is welcome 4.Any sizes and color Product/Service(We Sell):O-rings,U-type loops,Y-type loops,customized rubber itemsMaterial NR, SI, EPDM, NBR, SBR, FPM, IR,, BR, IIR, PU, etc, just as your request.CertificationISO 9001:2000SGS,PAHS,LFGB,ROHS,FDA,etc SizecustomizedColor allPackage5000 pcs/bag, 10000pcs/bag, or ...