The bolted ball grid structure (coal shed grid project) of Tangshan Wenfeng Iron and Steel Co., Ltd. constructed by Huahai Steel Structure was completed, with a construction area of 220 meters * 264 meters. The project has been delivered.

Hebei Wenfeng Industrial Group Co., Ltd. is located in the Caofeidian Small and Medium-sized Enterprise Park, Tangshan City, Hebei Province, with a registered capital of 239 million yuan. It is a company integrating mining, pig iron smelting, steel rolling, equipment manufacturing, real estate development, pharmaceutical research, storage, and import and export of goods. Other large-scale private enterprise groups with cross-regional, cross-industry and cross-industry production and operation. The company's main business is: alloy structural steel plates, military armored steel plates, shipbuilding and offshore oil production platform steel plates, high-speed trains and heavy-duty train hub steels, extra-thick plates, round Billets, ERW longitudinally welded pipes, forgings, rings, coke, ore, iron powder, alloy materials and other products, as well as warehousing, import and export trade, technology transfer, technical consultation and other businesses.