- Xingtai City Yangzhou Bicycle Parts Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Taizhou Huangyan Xuhui Mould Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- HEBEI NEW SINDA PIPES MANUFACTURE CO., LTD
- Main business:
- Caribbean RegionBermuda
- Wuxi Lianyu Machinery Technology Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Dewei Stainless Steel Pipe Industry Co,Ltd
- Main business:
- Caribbean RegionBermuda
- Quanzhou Yexin Steel Products Co.,Ltd.
- Main business:
- Caribbean RegionBermuda
- Yongkang Hongtai Hardware & Machine Factory
- Main business:
- Caribbean RegionBermuda
- Shanxi Guanghua Cast Pipe Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Hebei Zhong Tai Steel Pipe Manufacture Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Quanzhou Keysun Precision Mold Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Huangyan Yanjun Mould Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shandong star source tower Co.,LTD
- Main business:
- Caribbean RegionBermuda
- ZDM (Zhenzhi) Machinery & Mould Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- shandong huawei metal commodoty co.,ltd
- Main business:
- Caribbean RegionBermuda
- cangzhou xinyuan pipe produce co.,ltd.
- Main business:
- Caribbean RegionBermuda
- Yangjiang Tes Mould Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Dingxiang Wantong Pressure & Forging Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Beijing zhongtaixingshun Pipeline Equipment Co.,Ltd.
- Main business:
- Caribbean RegionBermuda
- GUANGDONG YITONG PIPE INDUSTRIAL CO.,LTD
- Main business:
- Caribbean RegionBermuda
- Shantou Chengguo Trading Co., Ltd.
- Main business:
- Caribbean RegionBermuda