- Hebei Shenzhou Steel Pipe Manufacture Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Yantai RunKang Economic and Trade Co.,LTD
- Main business:
- Caribbean RegionBermuda
- Cangzhou Xinhengxin Steel Pipe Mill Co.,Ltd.
- Main business:
- Caribbean RegionBermuda
- Foshan city xinhao aluminiumindustry bicycle co.,lid
- Main business:
- Caribbean RegionBermuda
- Tianjin Jinshihongfeng Trade Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Tianjin Haoshengxin Steel Pipe Co., Ltd
- Main business:
- Caribbean RegionBermuda
- SONA LIMITED
- Main business:
- Caribbean RegionBermuda
- Wenzhou Juxing special steel co.,ltd
- Main business:
- Caribbean RegionBermuda
- DRLIPRL OILCOUNTRY TUBULAR GOODS CO.,LTD
- Main business:
- Caribbean RegionBermuda
- Bazhou Hongsheng Metal Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Baoji Tongrun Metal Materials Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Jiangyin Jiangyin Longshan Pipe Fitting Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Hangzhou Wanyun Precision Cold-drawn Steel Pipe Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Cangzhou Xinzhou Pipe Company
- Main business:
- Caribbean RegionBermuda
- Hongkong DDQ Applied Materials Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- shanghai phoebus steel co.,ltd
- Main business:
- Caribbean RegionBermuda
- Shijiazhuang ruidatong pipe fitting co ltd
- Main business:
- Caribbean RegionBermuda
- dongying goldenman trading co., ltd
- Main business:
- Caribbean RegionBermuda
- PM Ltd.
- Main business:
- Caribbean RegionBermuda
- YANTAI SHUANGHUAN COMMODITY CO., LTD
- Main business:
- Caribbean RegionBermuda