rubber spacer 1.NBR, SBR, CR, EPDM, etc 2.rubber gasket with oil, acid 3.widely used in many industries ... 4.ISO, SGS rubber spacer 1.Certificate:ISO 90012.Material:NR,SI,EPDM,NBR ... , anti-corrosion, etc.Size and LogoAccording to your request.Color Black, transparent, green, red, yellow, etc.CertificationsAll manufacturing processes are complied ...