1,ASTM A36 2,50mm*50mm*2mm*6m Hebei Runcheng Steel Pipe Co., Ltd. is located in the historic city of Cangzhou City, Yanshan County, south of Shandong, north of Beijing and Tianjin. With Beijing-Shanghai high-speed railway, Beijing-Shanghai, Beijing Highway, 104, 307 & 205 national roads passing by, we enjoy superior geographical position and convenient transportation. The main products of our ...