... produce various size o rings,rubber gaskets,washer,rubber seals custom rubber parts. Shenzhen (Xinhuaxu)XHX Rubber Products ... Product Application:AutomobileMechanical sealsElectronicFluid sealsAir Valve sealsHydraulic sealsOil seals We use high quality material and currently expand ... gaskets,custom rubber parts.Material Nitrile(NBR), HNBR, EPDM,Silicone, Fluorocarbon, SBR, Neoprene(CR),Butyl(IIR),NR,PU ...