China United Engineering Company, formerly known as the second Design Institute of mechanical industry, is one of the first large-scale comprehensive design institute of the new China, the country to undertake various types of machinery factory design and technical transformation tasks. In 1958, according to the division of the national industry, mainly responsible for power generation equipment manufacturing industry (boiler, steam turbine, power station auxiliary), general equipment manufacturing industry (fan, compressor, pump, valve, cooling machine, air separation equipment, vacuum equipment, separation equipment, plastic machinery, etc.) design and development planning, basic construction and technical transformation projects and instrument manufacturing industry, and undertake the design task related to the production of special equipment, automatic line test device, making contribution to the establishment of the system of China's machinery industry.