Henan Gaofeng Heavy Industry Machinery Co., Ltd. Founded in 1975, Henan Gaofeng Heavy Industry Machinery Co., Ltd. (formerly Henan Huanghe Mining Machinery Factory) is a joint-stock enterprise specializing in heavy mining machinery and grinding equipment, integrating research, production, and sales. Company Overview • Location: Zhengzhou Economic and Technological Development Zone • Facilities: Two standardized heavy industrial workshops (10,000 m²), 150+ sets of machining equipment • Personnel: 130+ employees, including 30+ engineers and technical staff • Technology: Advanced techniques from USA, Germany, Japan, and Australia