What are the steel mills covering an area of 20 mu in Tangshan?

Tangshan Shenglong Steel Structure Engineering Co., Ltd. and Tangshan Xinda Iron and Steel Co., Ltd. ... According to Baidu map, Tangshan Shenglong Steel Structure Engineering Co., Ltd. is located in Fengrun District of Tangshan City, covering an area of 20 mu, and Tangshan Xinda Iron and Steel Co., Ltd. is located in Huanxizhuang Industrial Park in Fengrun District of Tangshan City, covering an area of more than 20 mu. Iron and steel enterprises refer to enterprises whose basic task is to produce steel products.