- Ningbo Liwan Tube Bending Parts Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Tosval Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yuhuan Qinghao Copper Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Yongxin Castings Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Chuan Chuan Metal Valves Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Kelan Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Tianjin Jinxin Steel Trading Co.,ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Songxia Valve Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Yongxing Pneumatic Complete Set Factory
- Main business:
- Caribbean RegionBermuda
- Zhejiang Huayi Piping Systems Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Shuangrong Auto Air-Conditioner Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shenzhen Kaihua Precision Machining Hardware Factory
- Main business:
- Caribbean RegionBermuda
- Puyang Zhongruan Technology Development Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Jiacheng Hydraulic Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Qingdao Luoke Hardware Products Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Huaxing Pipeline Equipment Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Qingdao Norman Precision Casting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Jiexi Steel Pipe Co.ltd
- Main business:
- Caribbean RegionBermuda
- Dalian Xin Fei Yu Technology Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yuhuan Guangming Brass Co., Ltd.
- Main business:
- Caribbean RegionBermuda