Zhangjiagang Fengheng Steel Co., Ltd. is a large -scale professional enterprise engaged in all kinds of steel structure engineering design, manufacturing, and installation. It was built in 1998. The company is a high -tech enterprise in Qingdao City and vice chairman of the Jiaozhou Steel Structure Association. Passed GB/T 19001-2008/ISO 9001: 2008 Quality Management System Certification, GB/T 24001-2004 IDT ISO 14001: 2004 Environmental Management System Certification, GB/T 28001-2011/OHSAS 18001: 2007 Vocational Health and Safety Management System Certification; the full series of production licenses of 750kV transmission line iron tower production license, radio communication iron tower and mast products, steel structure engineering professional contracting level 资 qualification certi...