rubber seal ring 1.Material:HNBR 2.High/Low temperature resistance,Oil resistance, ... .Size:1/2 3/8 5/8 3/4 5/16 rubber seal ring 1)We have kinds of material : NBR,HNBR ... there are high temperatures and corrosive liquids or gases involved.4)We offer OEM, We can design, produce according to your ... cartonSample lead time7 daysCarton Size47*38*34cmOEM/ODMwelcome rubber seal ring