Established in 1988,gears, shock absorber pars,etc PM parts, exported to Europe, US, Korea, etc. TS16949 Certificate Ningbo Kingbell Powder Metallurgy Co., Ltd. is a Sintered Metal Structure Parts factory, founded in 1988. Kingbell registered a sino-foreign joint venture---Ningbo Yongtai Powder Metallurgy Co., Ltd. in Feb. 2006. Kingbell/Yongtai specializes in manufacturing various of powder ...