... motor parts Nantong Runfeng Powder Metallurgy Co., Ltd. is specializing in powder metallurgy,oil bearings,structural parts,gears(sprockets) and different parts used in automobile and ... ,copper sleeve,sleeve bearing, bushing, bush,pulley,timing pulley,structural parts,powder metallurgy parts,micro motor parts,motor engine parts,nut,auto parts,rotor and stator etc.