- Ganzhou Gongyuan Technology Pipe Development Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zibo Uniline Chemical Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Iceage Imp. & Exp. Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhuji City Xingyuan Rubber & Plastic Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yantai Hengyuan Pipe Factory
- Main business:
- Caribbean RegionBermuda
- Shanghai JMP Drilling Equipment Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Associated Hydraulic Control Technology Co.
- Main business:
- Caribbean RegionBermuda
- Jiangyin Donglian High-Pressure Pipe Fitting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Princo Precision Casting Ltd.
- Main business:
- Caribbean RegionBermuda
- Wuxi Hengtong Metal Framing System Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hunan High Broad New Material Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Tianjin United Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wuhan Gaozit Enterprise Limited Company
- Main business:
- Caribbean RegionBermuda
- Yangzhou Ruidu Industrial Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shandong Tongpu Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Fenghua Yongxing Pneumatic Components Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Tianjin Kefa
- Main business:
- Caribbean RegionBermuda
- Cangzhou Honda Pipe Bends Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Jiangsu Jinying Special Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wujiang Hengjie Pipe Technology Co., Ltd.
- Main business:
- Caribbean RegionBermuda