How about Jining Yijian Steel Structure Co., Ltd.

Jining yijian steel structure co., ltd. is very good. Jining Yijian Steel Structure Engineering Co., Ltd. was established on August 22, 213. It is a national large-scale enterprise with the first-class qualification of national steel structure construction and the first-class qualification of national steel structure design. It specializes in the design, manufacture and construction of steel structures, grid structures, large piggy banks, curtain walls and other large buildings such as high-rise office buildings and high-rise residences, stadiums and exhibition centers. The company consists of engineering department, design department, technology department, quality inspection department, production department and security department.