We produce o rings, rubber gaskets, washer, custom rubber for the world in good quality and reasonable ... , Gear and other rubber parts. Our Material: Nitrile(NBR), HNBR, EPDM, Silicone, Fluorine(FKM,FPM), Neoprene(CR),Styrene(SBR) ,CR,ACM ... productso rings, gaskets,custom rubber parts.Material Nitrile(NBR), HNBR, EPDM,Silicone, Fluorocarbon, SBR, Neoprene(CR),Butyl(IIR),NR,PU etc ...