Oring, Oil Seal, Seal Ring manufacturer / supplier in China, offering Durable O-Ring Seals for Oil Applications in Various Materials, Custom Construction Machinery Parts Thin or Large Size 260c Heat Resistant Rubber Seals FKM O-Ring/Orings/O Ring Gasket, ED Ring DIN3869 Fitting Nitrile Rubber NBR Bevel Washer Column End with Fluid Joint Seal Ring and so on.