... hardness 3.High precision 4.Oem offered 5.Powder metal parts Nantong Runfeng Powder Metallurgy Co., Ltd. is specializing ... bearings,structural parts,gears(sprockets) and different parts used in automobile and motorcycle.our company boasts fulley-automatic shaping mills, ... bearing, bushing, bush,pulley,timing pulley,structural parts,powder metal parts,nut,auto parts,sintered parts,rotor and stator etc.