- Tianjin Zhonghua Innovated Steel Tube Commercial Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- liaocheng wuxing import and export co.,ltd
- Main business:
- Caribbean RegionBermuda
- Nimax General Trading LLC
- Main business:
- Caribbean RegionBermuda
- Foshan Lancho Precision Metal Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- HONGKONG YOUCHENG INTERNATIONAL TRADE CO.,LTD
- Main business:
- Caribbean RegionBermuda
- Nanjing Xinkangjian Stainless Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Hebei Longrun pipeline Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Jinhua Huatai Copper Industry Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Haiqi Steel International Co., LTD
- Main business:
- Caribbean RegionBermuda
- Zhangjiagang Bonded Aea Henglong Steel Pipe Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Cangzhou City Sined Steel Pipe Group Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Tianjin Qiushi Industry and Trade Co., Ltd
- Main business:
- Caribbean RegionBermuda
- TIANJIN DINGCHENGLI INTERNATIONAL TRADING CO.,LTD
- Main business:
- Caribbean RegionBermuda
- SHANDONG HUABAO STEEL PIPE CO.,LTD
- Main business:
- Caribbean RegionBermuda
- Tianjin Baolf Steel Co.,Limited
- Main business:
- Caribbean RegionBermuda
- Beihai Pipe
- Main business:
- Caribbean RegionBermuda
- Rubatek LLC
- Main business:
- Caribbean RegionBermuda
- Lishite Pipe Equipment Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Qingdao Megatro Holding Inc.
- Main business:
- Caribbean RegionBermuda
- Hebei RunHong Construction Machinery Manufacture Company
- Main business:
- Caribbean RegionBermuda