... metallurgy,oil bearings,structural parts,gears(sprockets) and different parts used in automobile and motorcycle.our company boasts ... --resizing--cleaning--vacuum oiling--packing3.material:steel,copper,steel copper,bronze,alloy.4.produce equipment:200T,100T,60T ... ,sleeve,copper sleeve,sleeve bearing, bushing, bush,pulley,timing pulley,structural parts,nut,auto parts,rotor and stator,sintered parts etc ...