Zhongtong Steel Structure Engineering Co., Ltd Brief Introduction We are the Grade A enterprise in steel structure and chain structure. We are member of China Construction Metal Structure Association We are also the first honored for the appointed place of steel structure, chain structure and installation by Ministry of Construction Passed he certification of ISO 9001-2000 quality system The main product: The design, manufacture and installation of multil, light, weight steel structure The design, manufacture and installation of chain structure Processing and sale of steel product and panel