- Shandong Albetter Albronze Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Zhejiang Tsingshan Steel Pipe Co., Ltd
- Main business:
- Caribbean RegionBermuda
- shanghai lanjiang industrial co.,ltd
- Main business:
- Caribbean RegionBermuda
- Donfine Pipeline & Sanitary Ware Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- china huadong stainless steel group
- Main business:
- Caribbean RegionBermuda
- Shanghai Juxing Industrial Co., Ltd
- Main business:
- Caribbean RegionBermuda
- zhejiang gelileo machinery co.,ltd
- Main business:
- Caribbean RegionBermuda
- HEBEI YAFA STEEL PIPE MANUFACTURE CO.,LTD
- Main business:
- Caribbean RegionBermuda
- TIAN JIN RUI JIAN STEEL CO.,LTD.
- Main business:
- Caribbean RegionBermuda
- Tianxing Group Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Liaocheng Jinrui Steel Pipe Co.,LTD
- Main business:
- Caribbean RegionBermuda
- Luoyang Achemetal Co.,Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Bote Pneumatic Component Co.,ltd
- Main business:
- Caribbean RegionBermuda
- Shijiazhuang JingBo Petroleum Machinery Co., Ltd.,
- Main business:
- Caribbean RegionBermuda
- Zhangjiagang Huayu Nonferrous Metal Material Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Chengdu Chengde Heavy Forging Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Tomson Plastic Industry Co.Ltd
- Main business:
- Caribbean RegionBermuda
- Hebei Wanrun Tube and Pipe Industry Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Efya International Imp&Exp co.,ltd
- Main business:
- Caribbean RegionBermuda
- Zhangjiagang Yiyang Pipe Producing Co., Ltd
- Main business:
- Caribbean RegionBermuda