World Instruments of Surveying and Mapping Company (Qinghua Huayuan Branch)

Kelida Instruments of Surveying and Mapping (Zhonghao Garden Branch)

Shuolong Instruments of Surveying and Mapping Environmental Protection Equipment (Greenland Yipin Shop)

Hongyuan Instruments of Surveying and Mapping (Fuhao Garden Branch)

Xingyuan Sewing Equipment (Yuting Shiji Branch)

Ruiling Welder (Suqian Yiwu International Business & Trade City Shop)