... rings, rubber gaskets, washer, custom rubber for the world in good quality and reasonable price. Shenzhen Xinhuaxu(XHX )Rubber Products ... Co., Ltd is a manufacturer in various rubber sealing kits, our main products including O rings ... productso rings, gaskets,custom rubber parts.Material Nitrile(NBR), HNBR, EPDM,Silicone, Fluorocarbon, SBR, Neoprene(CR),Butyl(IIR),NR,PU ...