- 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
- Hebei Longsheng Metal&Minerals Co. Ltd.
- Main business:
- Caribbean RegionBermuda
- Guangzhou Tiant Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Beijing Sanye Carbon Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yingkou Liaohe Machinery & Pipe Fittings Co.,Ltd.
- Main business:
- Caribbean RegionBermuda
- Baoji Thread Gages Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Wenzhou daysly machinery co., ltd
- Main business:
- Caribbean RegionBermuda
- Shandong Liaocheng Kaihong Import and Export Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhangqiu Taitou Special Steel Ball Factory
- Main business:
- Caribbean RegionBermuda
- WENZHOU BANGDA PIPE FITTINGS MANUFACTURING CO.,LTD
- Main business:
- Caribbean RegionBermuda
- cangzhou zhongshun steel pipe trade Co.Ltd
- Main business:
- Caribbean RegionBermuda
- Taizhou Huangyan Yosion Plastics & Mould Factory
- Main business:
- Caribbean RegionBermuda
- Tianjin Shengjintai Steel & Iron Co.Ltd.
- Main business:
- Caribbean RegionBermuda
- Kunshan Zhuteyegong Mold Materials Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Unite Steel Trading Company
- Main business:
- Caribbean RegionBermuda
- Jiangyin Haixing Heat Sealing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Taizhou City Huangyan Chuanye Industry & Trade Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Huike steel pipe co ltd
- Main business:
- Caribbean RegionBermuda