... 3.high precision 4.good strength 5.professional micro motor parts Nantong Runfeng Powder Metallurgy Co., Ltd. is ... in powder metallurgy,oil bearings,structural parts,gears(sprockets) and different parts used in automobile and motorcycle.our ... bearing, bushing, bush,pulley,timing pulley,structural parts,powder metallurgy parts,micro motor parts,motor engine parts,nut,auto parts,rotor and stator etc.