Powder Metallurgy Products, Metallurgy Gear, Oil Bearing manufacturer / supplier in China, offering 630 Straight Bushing Cylindrical Copper Bush Blender Bushes Bearing Sleeve, OEM/ODM Customized Sintered Cu-Fe Straight Sleeve Bushing, 25*3.5mm Powder Metallurgy Transmission Stainless Steel Internal Gear for Mixer Parts and so on.