Henan Coal Scientific Research Institute Co., Ltd established in March of 1979. At the beginning of its creation, it is a member of National Ministry of Coal Industry, mainly bears ministry and provincial scientific research projects. Over the years, it undertakes over one hundred projects authorized by original coal industry, Henan science and technology commission and coal enterprises bid inviting and it made scientific and technological achievements more than 90 items, won 45 awards, fulfilled technical consulting service over 110 items and more than 10 items of patent awards. In 1999, according to the deployment of national scientific research system reform, the original Henan Research Institute of Coal Science, listed as one of the national first batch of 242 enterprising science research institutes is delegated to Henan province with apanage management.

Keming Mechanical & Electric Department directly subordinate to Henan Research Institute of Coal Science expands from a pilot plant supported by abundant scientific research strength of Henan Research Institute of Coal Science. Now it develops into a leading enterprise in the industry of concrete spraying machine and is formed by concrete spraying machine as the main body of series of diversified products. It owes high reputation in society with high quality and technology.

Our department invents autonomously PZ-5 rotor type concrete spraying machine which is listed as key promotion project of " Nine and five" national level science and technology achievements. Achievements transformed base__Keming Mechanical & Electric Department manufactures series of concrete damp spraying machine, wet spraying machine, KSPZ 15 multifunction wet spraying machine, concrete grouting pump, irrigated pump, hose pump, piston pump, rotor piston type wet spray, etc., which are mainly used in mine working, water-power engineering, railway and highway tunnel, subway engineering, bridge maintenance, side slope maintenance, air-RAID shelters, civic constructional engineering, environmental greening engineering, blast furnace refractory matter spraying working, etc.