Tianjin Dingsheng Hongyuan Mechanical and Electrical Equipment Co., Ltd.

Huashi Instruments of Surveying and Mapping (Jinnan Branch)

Bearing Hardware (Puming Nanli Branch)

Heli Forklift (Jinnan Branch)

Tianjin Minyang Precision Machinery Co., Ltd.

Crane Control Equipment (Tianche Repair. Gaokongche Rent Dianhanji Repair)