We produce o rings, rubber gaskets, washer, custom rubber for the world in good quality and reasonable price. Shenzhen Xinhuaxu( ... and other rubber parts. Our Material: Nitrile(NBR), HNBR, EPDM, Silicone, Fluorine(FKM,FPM), Neoprene(CR),Styrene(SBR) ,CR,ACM,PU ...