- Cixi Mingzhan Industrial & Commercial Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Jiaxing Hongzhi Toolmaking Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Kangda Machine-Made Pipe Fittings Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Foshan Shunde Swin Industrial Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Cangzhou Hengtong Tubing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Yanghao Pipe Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yixing Maigao Corrugated Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shijiazhuang Beihai Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Gongyuan Pipe Manufacture Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Dongguan Wellsource Water Treatment Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Jiangyin Zhenghuangde Plastic Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Ritia Pipe-fittings Manufacture Co. Ltd
- Main business:
- Caribbean RegionBermuda
- Yinlong Sanitary Ware Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Taizhou Yisheng Trading Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Haote Pipe Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Gongyi Xinli Pipeline Equipment Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhengzhou Bihe Trade Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Uniqe Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yanshan County Manyuan Pipe Fittings Manufacture Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yonggao Co., Ltd.
- Main business:
- Caribbean RegionBermuda