... .Other sintered parts like bushings, sleeves, pistons, connecting rod, fasteners, nuts, rotors, stators, timing pulley, camshaft ... cleaning--vacuum oiling—packing3. Material: carbon steel, copper steel, copper molybdenum steel, alloy.4. Production equipment:a ... . Other resizing machines like drilling machine, grinding machine, CNC machine, polishing machine, plating machine etc.5. All-round testing ...