Shaanxi Guoqin Stainless Steel Material Co., Ltd.

Shaanxi Hualei Stainless Steel Co., Ltd.

Xi'an Yide Stainless Steel Material Co., Ltd. (Railway Workshop Unit Shop)

Copper Materials Daquan

Hutong Copper Materials Daquan

Xi'an Xinyuanhang Metal Material Co., Ltd. (Railway Workshop Unit Dongdaban Shop)