Beijing Shuangtai Pneumatic Equipment Co. Ltd. is engaged in the manufacture of the pneumatic hoist, pneumatic column jib crane, pneumatic crane. And the State General Administration for Quality Supervision and Inspection and Quarantine Administration of the People's Republic of China has awarded the "special equipment manufacturing license" No.: TS2411007-2014, "special equipment installation, alteration permit " ID: TS3411058-2014. In 2009, my company passed the quality management system certification of GB / T19001: 2008idt ISO9001: 2008.