Henan Jiaozuo Mining Machinery Co., Ltd.(JMMC) founded in 1949. JMMC is a key enterprise of heavy-duty machinery manufacturing industry. It covers an area of more than 360000 ㎡ and fixed assets is beyond 20 million RMB. JMMC possesses a group of senior engineers and technicians and high-quality workers. It is a national second-grade measurement unit and obtained ISO9001 Quality System Certificate in 2000.