... ). 2. rudder system. 3.competitive price. Tianjin Giant Industrial Development Co., Ltd, (hereafter referred to as Giant) established in 1999, with ... subsidiaries Tianjin Jiangtian Section Steel Co., Ltd and Tianjin Tianzhong Giant Heavy Industry Co., Ltd is a group of private ... metallurgy, electric power, petroleum, chemical, cement as well as the industry of national defense military and other ...