Our company originated from the Kemin Electrical and Mechanical Department of Henan Province Coal Science Research Institute Co., Ltd. Since the 1980s, we have been dedicated to the research of shotcrete machines.One of the standard-setting units for the national shotcrete machine industry.The company holds over 20 national invention patents for spray machines.2. The spray gun was awarded the Third Prize for Technological Progress by the former Ministry of Energy.The spray machine was awarded the Second Prize for Scientific and Technological Achievements by the Ministry of Railways.