Hebei Tiantai Machinery Group Limited Liability Corporation is a medium-sized private enterprise. By flexible mechanism and high-tech products, we win the praise of clients. We, gathering manufacture and export and trade, are a home professional manufacturer. Company covers more than 100, 000 square meters and construction area of 30, 000 square meters. We are in possession of 250 million RMB. The staffs of 700 people who include high and mid level professional 48, undergraduate course 160. Company always adheres to the "Quality First, User First" management symbol, and then in April 1998, we pass ISO9002:1994 as well as ISO 9001:2000 in Dec.2003 that the company enters to a bran-new stage of the modern management, the large-scale production, and the rapid development. We mainly specializes seamless steel pipe, hot expanded steel pipe, hot-rolled steel pipe, spiral weld pipe, tube fitting and sleeve. Products are widely used in long pipeline of transporting oil, gas, water, medicinal, sanitation, food and so on, and then petrochemical enterprise technology pipe network, urban centralized supplying heat pipe network, gas pipeline network and other projects. Well-equipment, such as 700t of hydraulic pipe bender, 1, 500t of pressure machine, 1, 200mm large-caliber groove machine. 6 spiral weld pipe production line, 2 hot-rolled seamless steel pipelines and 4 thermal expansion seamless steel pipe lines. Average one year production amounts on 219-1820 double-helix SSAW about 200, 000t, 57-377 hot-rolled hot finished steel pipe about 200, 000t, 377-820 thermal expansion seamless steel pipe about 60, 000t, product according to implementation SY/T5037, GB/T9711, GB/T8163, GB/T8162, GB/T 3087, API 5L, APT 5CT standards meantime we can provide for users the American Standard ASTM seamless steel pipe, German Standard DIN seamless steel pipe, as well as special caliber and special wall thickness of the pipes, then equipped with high standard of the physical