Yixin Qingjiang Mechanical Manufacturing Co. Ltd. (YQMM) is a private enterprise with a total investment of more than 300 million RMB. The YQMM specializes in the manufacturing of a variety of tower cranes. It owns certified documents such as A Class Permit for Manufacturing Cranes issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, and permits for tower crane installation and maintenance, etc., and has also earned a Certificate of Honor for safety of production and excellence of quality issued by China Construction...