China is already the world's largest producer and consumer of building materials. The output of the main building materials such as cement, flat glass, building sanitary ceramics, stone and wall materials has ranked first in the world for many years. At the same time, the quality of building materials products has been continuously improved, the consumption of energy and raw materials has been decreasing year by year, various new building materials have been emerging, and building materials products have been continuously upgraded. Cangzhou has a solid foundation for the pipeline equipment manufacturing industry. There are more than 3,200 production enterprises, including 222 enterprises above designated size (with sales income of more than 5 million yuan) and 124,000 employees. The main products are seamless steel pipes of various calibers such as special steel, stainless steel, carbon steel, low, medium and high pressure boiler pipes, oil drilling pipes and other steel pipes; various tees, crosses, valves, reducers and other elbow fittings ; All kinds of stainless steel flanges, forged flanges; all kinds of pipe racks, instruments, oil blowout preventers and other pipe fittings; all kinds of polyethylene pipes, polypropylene pipes and other plastic pipes, a total of 16 categories of more than 370 varieties of more than 3,500 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, petrochemical, west-to-east gas pipeline, shipbuilding and nuclear power engineering fields, with an annual design processing capacity of 25 million tons. In 2010, the industrial added value of enterprises above designated size reached 13 billion yuan, a year-on-year increase of 31.7%, accounting for 16.1% of the added value of all enterprises above designated size. Cangzhou's pipeline equipment manufacturing industry is moving towards the goals of "three-up" (upscale, higher-level, and higher-level equipment) and "three-high" (high-end, high-pressure, high-value-added), and strives to promote the pipeline equipment manufacturing capacity to reach 30 million tons. Cangzhou will become a well-known "pipeline equipment manufacturing and R&D base" and "pipeline equipment capital" at home and abroad. The "Eleventh Five-Year" planning infrastructure investment has reached the middle stage. The explosive growth of infrastructure construction investment such as roads and railways and the steady growth of ordinary civil construction investment have made the construction industry in a booming stage. At the same time, in the context of building an energy-saving society and the country's ability to strengthen independent innovation, the theme of energy-saving and technological innovation will be the hotspot of the industry's development.
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