... metal parts Nantong Runfeng Powder Metallurgy Co., Ltd. is specializing in powder metallurgy,oil bearings,structural parts,gears(sprockets) and different parts used in automobile ... products we produce are widely used in automobile,motorcycle and many other field.like transmission ... , bush,pulley,timing pulley,structural parts,powder metal parts,nut,auto parts,sintered parts,rotor and stator etc.