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China Mechanical Science Research Institute Group Co., Ltd. (hereinafter referred to as China Mechanical Science Research Institute) was formerly the Mechanical Science Research Institute of the Ministry of Machinery Industry, which was established in 1956 during the construction of New China. In 1999, in accordance with the requirements of "Document No. 197 of the State Science and Technology Development Administration (1999)", a number of research institutes directly under the former Ministry of Machinery Industry engaged in basic common technology research and development were transferred to the Mechanical Science Research Institute and transformed into a central enterprise. In 2003, the Mechanical Science Research Institute became a central science and technology enterprise group supervised by the State-owned Assets Supervision and Administration Commission. In 2006, it was renamed the Mechanical Science Research Institute. In 2017, the Mechanical Science Research Institute was restructured into a corporatized company and renamed the Mechanical Science Research Institute Group Co., Ltd. In 2021, it was renamed the China Mechanical Science Research Institute Group Co., Ltd.

Our company specializes in central air conditioning, central heating, central hot water systems, central water purification, central fresh air systems, and engineering installation and repairs.

Huzhou Zhongrui Clean Technology Co., Ltd. produces stainless steel seamless BA pipes and EP pipes. The outer diameter is 6.35 to 50.8mm and the wall thickness is 0.5 to 3.0mm. The company adopts multi-roller finishing and oil drawing processes, and can provide products with inner wall roughness less than Ra0.8, Ra0.2, etc.

Shandong Zhongrui Engineering Machinery Co., Ltd. is an enterprise engaged in the research and development and production of rock drilling machinery. Our products are widely used in mining, tunneling, drilling of oil and gas wells and water wells, pile foundation construction, railways, highways, airports, ports and national defense construction, and are very popular among domestic and foreign users.

Understand the importance of condensate recovery and condensate recovery, and master solutions for exhaust steam recovery, waste heat recovery, and water treatment. At the same time, understand the uses of ejectors, ejectors, oil and iron removal, anti-cavitation, and superchargers.

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Ningxia Information Network is one of the enterprise portals in Ningxia. With originality as the core, it provides enterprises with fast and authoritative enterprise information 24 hours a day.

Natural Beauty Environmental Technology Co., Ltd. is a new type of environmental management high-tech enterprise integrating urban and rural sanitation integrated system solutions, domestic waste treatment technology research and application, garbage classification, restaurant kitchen waste resource processing, industrial project investment, urban and rural water body management, sanitation equipment sales, leasing and maintenance, landscaping maintenance, and property management.

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