In 2000, seamless national apparent consumption of 4.18 million tons, of which domestic supply of 3.821 million tons, accounting for 91.4% of the total domestic demand. Imports of 35.9 million tons, accounting for 8.59% of the total domestic demand. In the same year OCTG consumption of about 91 million tons. Import about 252,000 tons. Inlet tube accounted for about 70% of the total domestic consumption, which accounted for 27.69% of the total domestic consumption of imported pipe, oil pipe imports accounted for about seamless pipe about 70 per cent of the total imports. More than half of the total imports of OCTG imported from Japan. China's largest oil the casing production base - Tianjin Steel Tube Company steel pipe products in 2000, out of 522,000 tons, including oil casing production of 364,100 tons. Casing accounted for more than half of the national oil production. On the production and sales of the casing market. Judging from the international and domestic markets, the existing production capacity of seamless (including OCTG), have been greater than the demand. Therefore, the future focus should be placed on the ability to give full play to the existing units, the development of high-strength grade, high against the ruined, high resistance to corrosion of oil pipe, high pressure boiler tubes and cylinders pipe and other products. The country also optimize the product structure of China's iron and steel market. This is also an increase in the competitiveness of their products at home and abroad, the key to expand market share. That is to improve the market competitiveness of the domestic steel enterprises is a long-term task of domestic enterprises and the successful development of the key plus and the WTO. Seamless pipe (15)