- Shanxi Datong Casting Co., Ltd.
- Main business:
- Beijing Omni Machinery Equipment Co., Ltd.
- Main business:
- Taiyuan FF Flanges & Fittings Co., Ltd.
- Main business:
- Shandong Longshun Pipe Co., Ltd.
- Main business:
- Shanxi Ascent Industrial Co., Ltd.
- Main business:
- Liuzhou Hes Steel Trade Co., Ltd.
- Main business:
- Cangzhou Datang Steel Pipe Co., Ltd.
- Main business:
- Qingdao Valtech Manufacturing Co., Ltd.
- Main business:
- Cangzhou Doushan Machinery Manufacture Co., Ltd.
- Main business:
- Foshan Bianjin Steel Co., Ltd.
- Main business:
- Shanghai Jiuzhou Industrial Co., Ltd.
- Main business:
- Taiyuan Water Industrial Co., Ltd.
- Main business:
- Shanxi Midas Industrial Co., Ltd.
- Main business:
- Shanxi Allwin Industrial Co., Ltd.
- Main business:
- Qingdao Jiuzhou Materials Co., Ltd.
- Main business:
- Qingdao Lianfeng Pipe Co., Ltd.
- Main business:
- Anhui Anze Electric Co., Ltd.
- Main business:
- THE MEGA COMPANY
- Main business:
- Guangzhou Lanno Electronic Technology Co., Limited
- Main business:
- Ningbo Navi Havc Cool & Heat Engineering Co., Ltd.
- Main business: