Henan Coal Scientific Research Institute Co., Ltd. (the former Henan Coal Scientific Research Institute), was established in March 1979 at Zhengzhou, Henan Province, China. In 2006, it was transformed successfully into a scientific and technological enterprise, and renamed officially as Henan Coal Scientific Research Institute Co., Ltd.Achievements: The company has obtained more than 170 research and development achievements, 82 technology awards and 20 national invention patents and utility model patents. Now, our company operates more than 60 kinds of products, covering shotcrete equipment, hose pump, grout equipment, mixing equipment etc. Service: mechanical and electrical products, chemical technology, the development and manufacture of mining products, technical research of energy conservation and environment protection technology, and relative consultation service.Application: mining well project, hydropower engineering, highway (railway) tunnel, subway engineering, bridge and slope maintenance, air-raid shelter construction, municipal construction, environmental greening project, blast-furnace refractories spraying, etc.Main Products: shotcrete equipment, grout equipment, plastering machine, mixing equipment etc.