Our company specializes in production and sales of high-quality spiral steel pipe ---- Everbright - Industry Pipeline Equipment Manufacturing Co., Ltd. exclusively for --- my company specializes in producing thermal expansion pipe, spiral steel pipe, high-frequency welded pipe, the annual distribution of Baotou Steel, Tianjin Steel and other steel mills the posterior wall of seamless steel tubes, I plant sided submerged arc welding process in North China's premier, 35 technicians, thermal expansion pipe equipment unit is a German import unit error is small, accurate scale. The public are welcome to visit and negotiate. Tel: 18331786134 Fax 0317-6083098.