China is already the world's largest producer and consumer of building materials. The output of main building materials such as cement, flat glass, building sanitary ceramics, stone and wall materials ranks first in the world for many years. At the same time, the quality of building materials is constantly improving, the consumption of energy and raw materials is decreasing year by year, various new building materials are constantly emerging, building materials products are constantly upgraded and replaced, and Cangzhou pipeline equipment manufacturing industry has a strong foundation. At present, there are more than 3200 production enterprises, 222 of which have more than 5 million yuan of sales revenue and 124,000 employees. The main products are various kinds of special steel, stainless steel, carbon steel and other calibres of seamless steel pipe, low, medium and high pressure boiler pipe, oil drilling pipe and other steel pipes; various three-way, four-way, valve, different diameter pipe elbow fittings; various stainless steel flanges, forged flanges; various pipe racks, instrumentation, oil blowout preventers and other pipe fittings; various polyethylene pipe, polypropylene pipe and other plastic pipes, a total of 16. There are more than 370 varieties and more than 3500 specifications. The main manufacturing processes are 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 pipeline is 2020 mm. Products are widely used in municipal, petrochemical, West-to-East Gas transmission, shipping and nuclear power engineering fields, with an annual design and processing capacity of 25 million tons. In 2010, Enterprises above the scale realized industrial added value of 13 billion yuan, an increase of 31.7% over the previous year, accounting for 16.1% of the total added value of Enterprises above the scale. Cangzhou pipeline equipment manufacturing industry is moving toward the goals of "three top" (scale, level, equipment) and "three www.sjzbaojie.net.cnwww.wufengwantou.cnwww.wushuichulii.com.cnwww.wushuichul.com.cnhigh" (high-end, high-pressure, high added value), and pushing the capacity of pipeline equipment www.jiaodaijiqi.cnwww.yanglaoyuann.cnmanufacturing industry 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. Infrastructure investment in the Eleventh Five-Year Plan has reached the mid-board. The explosive growth of infrastructure investment such as highways and railways and the steady growth of ordinary civil construction investment have made the construction industry in an upswing stage. At the same time, under the background of building an energy-saving society and strengthening the independent innovation ability of the country, the theme of energy-saving and technological innovation will be the development hotspot of the industry.