gears, rotors, shock absorber parts, other sintered metal parts Our factory, Ningbo Kingbell Powder Metallurgy Co., Ltd., has specialized in manufacturing items of metal powder metallurgy structure components spare parts for 20 years. We have exported our products to US, Korea, Germany, Iran, and so on.Kingbell are one of the Designer, Manufacturer for Powder Metallurgy parts, Auto & Moto spare ...