Tianjin Minjie Steel Co.,Ltd. is located in Jinghai Tianjin city, the most productive steel base in China,a comprehensive enterprise. Minjie steel stand by the 104 and 205 national highway, where is just 40 milimeters to Tianjin Xingang Port .. With decades of development, it is today one of the leading producers of galvanized steel pipe, black welded steel pipe and hollow sections in China.Minjie Steel has been certified under ISO 9001:2000.Its Products have been exported to Asia, America , ...