Electric power, oil and gas, petrochemical, metallurgy: 4001620508-1
Pipe gallery, railway, bridge&tunnel, mine: 4001620508-8

Nanjing Headquarters: No. 23, Andmen Street, Yuhuatai District, Nanjing
Beijing subsidiary: Dongyong Chuangyegu Block A, Dongcheng District, Beijing
Guangzhou subsidiary: Building 1, Industrial Internet Innovation Center, Baiyun District, Guangzhou
Ordos Business Center: No.25 Hangjin North Road, Dongsheng District, Ordos City

Nanjing Production Base: Building C11, Zhongke Industrial Park, Pukou Economic Development District, Nanjing
Fuyang Production Base: Building 13, Xiasun Robot Industrial Park, Fuyang City