- Yueqing City Haotai Machine Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Guangzhou Shunyong Metal & Machinery Ltd.
- Main business:
- Caribbean RegionBermuda
- Kangtai Plastic Science & Technology Group Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai MengFeng Valve Fittings Factory
- Main business:
- Caribbean RegionBermuda
- Sanli Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Changqiang Power Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Shigu Mechanical Tube Fitting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Jinsuo Spiral Steel-Pipe Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yuexing Hardware Products Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wenzhou Haoheng Light Industrial Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Qingdao Chiyang Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Fu Rui Da Pipeline Equipment Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- KINGXU TRADING (HONGKONG) CO LTD
- Main business:
- Caribbean RegionBermuda
- Cangzhou Haixin Pipe-Fittings Manufacture Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Yuezhou Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Hengxin High-Pressure Pipe Fittings Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Fengye Pipe Fitting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Huayi Plastic Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Foshan Nanhai Xing Mao Metal Products Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Chancel Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda