... resistance&hardness 3.High precision 4.Oem offered 5.Powder metal alloy part Nantong Runfeng Powder Metallurgy Co., Ltd. is specializing ... products spread out all over the the country, and we supply components to Korea, America and japan. Our products are well known at ... ,sleeve bearing, bushing, bush,pulley,timing pulley,structural parts,powder metal alloy part,nut,auto parts,sintered parts,rotor ...