Qingdao Yuantong Machine Co., Ltd. is a joint-stock company with modern enterprise system. Existing staff of 326, an area of 68 mu. Its main products include: tyre mould, NC machine tool for special use, cast and production of extra-large parts. The Company leads in terms of studies of tyre mould process technique and equipment as well as the numerical control process of large disc-type parts, which has received several national patents, and is determined as the important new product in China.