auto rubber o ring 1.Material:HNBR 2.High/Low temperature resistance, ... 4 5/16 auto rubber o ring1)We have kinds of material : NBR,HNBR,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU ... nameO RINGSizeCustomized/standard and nonstandardBrand Nameo ringMaterialNBR,HNBR,EPDM,SILICONE,VITON,FLS,FFPM,PTFETemperatureCommon: 20~50degree centigrade;NBR(-40 ... time7 daysCarton Size47*38*34cmOEM/ODMwelcome auto rubber o ring