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