Our company's president and chief engineer, Kong Keqiang, has over 50 years of experience in the design, production and manufacturing of industrial electric furnaces. He formulated a number of industry standards for heat treatment furnaces in China. Under his leadership, the industrial electric furnaces produced by our company have been distributed all over the world. He has obtained multiple national invention patents including KKQ Perlite Expansion and Vitrification Furnace. 

KKQ is the abbreviation of his name. This is the only industrial electric furnace trademark in China named after himself. The Hardun KKQ Perlite Expansion and Vitrifcation Furnace is one of his major inventions. Currently, the vast majority of international vitrificated perlite expansion furnaces are produced and manufactured by our company.