... &hardness&density 3.high precision 4.oem offered 5.sintered water pump part Nantong Runfeng Powder Metallurgy Co., Ltd. is specializing in ... products spread out all over the the country, and we supply components to Korea, America and japan. Our products are well ... , bush,pulley,timing pulley,structural parts,powder metallurgy parts,nut,water pump part,auto parts,rotor and stator etc.