- Hebei Xingya Machinery Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Sichuan Dien Pipe Fitting Manufacture Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Tianjin Maikes Controls Valve Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Weiyu Pipe Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhangsheng Valve Co., Ltd. (Zhejiang)
- Main business:
- Caribbean RegionBermuda
- Yuhuan Eagle Brass Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Dalian Hainuo Information Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Shengzi Import & Export Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Qiai Group Co.,Ltd.
- Main business:
- Caribbean RegionBermuda
- GOLD INTERNATIONAL GROUP CO LTD
- Main business:
- Caribbean RegionBermuda
- Cangzhou North Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Jinan Changhong High-Tech Compound-Pipes Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Dalian Standard Piping Material Corp.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Xinerli Sanitary Share Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Dongying Ruibang Metal Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wenzhou Longda Plastic Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Puyang Dongfanglong Machine Manufacture Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yanshan Yida Jinding Pipefitting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Huahao Metal Material Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Baiyi Steel Pipe Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda