China is already the world’s largest producer and consumer of building materials. The main building materials such as cement, flat glass, building sanitary ceramics, stone and wall materials have been ranked first in the world for many years. At the same time, the quality of building materials continues to increase, energy and raw material consumption decline year by year, various types of new building materials continue to emerge, building materials products continue to upgrade, and the pipeline equipment manufacturing industry in Chuzhou is well-established. There are more than 3,200 existing production enterprises, of which 222 are above the scale (sales revenue is over 5 million yuan) and employs 124,000 people. The main products are all kinds of special steel, stainless steel, carbon steel and other kinds of seamless steel pipe, low and medium high pressure boiler pipe, oil drilling pipe and other steel pipe; all kinds of three links, four links, valves, reducers and other elbow pipe fittings Various stainless steel flanges, forged flanges; Pipe fittings for various pipe racks, meters, oil blowout preventers, etc.; Various plastic pipes such as polyethylene pipe and polypropylene pipe, altogether 16 categories More than 370 varieties More than 3500 kinds specification. The manufacturing process mainly adopts hot-rolled straight seam welding, spiral double-sided submerged arc welding, forging, forging, intermediate frequency pushing, cold forming, hot extrusion, etc. The maximum processing diameter of the pipeline is 2020 mm. Products are widely used in municipal engineering, petrochemicals, West-East gas transmission, ships and nuclear power engineering fields, with an annual design and processing capacity of 25 million tons. In 2010, the enterprises above designated size achieved an industrial added value of 13 billion yuan, a year-on-year increase of 31.7%, accounting for 16.1% of the added value of all above-scale enterprises.