... sino-foreign joint venture---Ningbo Yongtai Powder Metallurgy Co., Ltd. in Feb. 2006. Kingbell/Yongtai specializes in ... accuracy demands , gears, oil pump rotors and so on. Tianji Tian De Suspension System Co., Ltd., Zhejiang Qianjiang Motorcycles Group, ... and Zhongjian Tools Manufacture Co., Ltd. , AL-KO, ...