rubber seal ring 1.Material:HNBR 2.High/Low temperature resistance,Oil ... 3/4 5/16 rubber seal ring 1)We have kinds of material : NBR,HNBR,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU ... band, oil seal,water seal and rubber gaskets ect.Item nameO RINGSizeCustomized/standard and nonstandardBrand Nameo ringMaterialNBR,HNBR,EPDM,SILICONE,VITON,FLS ... lead time7 daysCarton Size47*38*34cmOEM/ODMwelcome rubber seal ring