- 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
- Yueqing City Jiasheng Technology Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Isaiah Pneumatics 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
- Maanshan Huachuang Construction Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yinlong Sanitary Ware Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Shengda Sunshine Pneumatic Machinery 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
- Topnotch Machine (Yongjia County) Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Jiangshan Risen Machine Co., Ltd.
- Main business:
- Caribbean RegionBermuda