My company with high quality products, reasonable prices, specializing in the production of seamless steel tubes, alloy pipe --- Our company specializes in the production of thermal expansion of steel pipe, spiral steel pipe, high-frequency welding pipe reasonable annual distribution of Baotou Steel, Tianjin Steel and other steel mills posterior wall seamless steel pipe plant double-sided submerged arc welding process in North China's premier technical staff of 35 people, thermal expansion pipe equipment unit is a unit imported from Germany, the error is small, precise scale. Welcome to come to visit and negotiate.