Northeast China
| City | Customer English name | Telephone | Link |
|---|---|---|---|
| Beijing | Beijing Newada Engineering Consulting Co.,Lt | 010-65520840 | |
| Beijing | Beijing Haoguanjia Co.,Ltd | 010-84648371 | |
| Beijing | Beijing YuanDongLi Company | 010-58607611 | |
| Beijing | Beijing Shenkuenhezhuang Company | 010-65755267 | |
| Beijing> | Beijing Dejingwei co.,Ltd | 010-84625377 | |
| Beijing | Beijing Zhongyujiaye Co.,Ltd | 010-81715288 | |
| Beijing | Beijing Changfengtai Engineering Company | 010-87365810 | |
| Zhengzhou | Zhengzhou Xue Zhong Qing | 0371-66832166 |  |
| Zhengzhou | Zhengzhou Hua Rong | 0371-66372222 | |
| Zhengzhou | Xuchang Nuan Zhi Lang | 0371-66759689 67382688 |  |
| Kaifeng | Kaifeng Dowell | 0378-5681313 | |
| Puyang | Henan Puyang Jin Long | 0393-8999289 | |
| Weifang | Weifang Shan He | 0536-8217558 | |
| Zibo | Zibo Ai De | 0533-2608988 | |
| Zibo | Zibo Gong Chuang | 0533-3187766 | |
| Dongying | Dongying Hua Pu Te | 0546-8305959 | |
| Laiwu | Laiwu Ran Qi | 0634-6217121 | |
| Qingdao | Qingdao Mao Da | 0532-88723921 | |
| Qingdao | Qingdao Ri Bai He Li | 0532-85848798 | |
| Jinan | Jinan Ding Long | 0531-82616437 | |
| Yantai | Yantai Lin Song | 0535- 6687295 | |
| Rizhao | Rizhao Hai He | 0633-3682518 | |
| Tai'an | Taian Heng Rui Da | 0538-6966600 |