According to the application, it can be divided into oil well pipe (casing, oil pipe and drill pipe, etc.), line pipe, boiler pipe, mechanical structure pipe, hydraulic pillar pipe, gas bottle pipe, geological pipe, chemical pipe (high-pressure chemical fertilizer pipe, petroleum cracking pipe ) And ships with tubes.
Wenzhou's stainless steel industry
The stainless steel industry in Wenzhou is an emerging industry that originated in the early 1980s. After 20 years of exploration and exploration, it has become well-known and has a certain influence in the domestic market.
At present, there are more than 130 production companies with good development and expansion. 38 perforation equipment throughout the industry. There are more than 500 cold-rolling and cold-drawing machines and 6 smelting equipments. All of them are externally refined and other equipments are relatively complete. The company's production capacity and scale are constantly expanding and strengthening. In 2001, there were 5 enterprises with output value exceeding 100 million yuan and more than 10 enterprises were rated as city and district star enterprises. In order to ensure product quality, water pressure, eddy current and ultrasonic flaw detection, direct reading spectrograph and other analytical testing equipment are constantly increasing and improving. In 2001, it was sampled and tested by the superior technical supervision department, and the passing rate was over 80%. With more than 300 technical and managerial personnel of various types of senior and intermediate titles, the company is gradually embarking on a standardized production and management track. The stainless steel industry in Wenzhou mainly produces stainless steel pipes and stainless steel rods. The varieties, specifications, and models have reached more than 400 kinds. In 2001, stainless steel sales reached 1.715 billion yuan and the output reached 106,000 tons. Stainless steel rods reached 222 million yuan, output was 211,000 tons, and taxes paid to the country reached more than 100 million yuan. The export volume of steel pipes has also increased year by year. In 2001, it was 5000T. The export volume this year is expected to be 8,000 to 10,000T. There have been 10 companies that have obtained import and export rights. Stainless steel pipes are exported to Southeast Asia, EU, dozens of countries and regions, and are highly appreciated by foreign businesses and users.