- Hebei Hengying Wire Cloth Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Zhuji Tianrui Copper Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wenzhou Topsun Bellows Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Cangzhou Hengli Pipe Fitting Manufacturing Co,.Ltd
- Main business:
- Caribbean RegionBermuda
- HeBei xinyuan pipe fitting co.,ltd
- Main business:
- Caribbean RegionBermuda
- Shanghai Flangenet Manufacture Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Hebei Best Minmetals Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Dongying Zhengda Metal Product Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- taizhou shenghong metal products co.,ltd
- Main business:
- Caribbean RegionBermuda
- Doocang Heavy Industries (Shanghai) Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- TIANJIN DALIPU OIL COUNTRY TUBULAR GOODS CO., LTD(export sales dept)
- Main business:
- Caribbean RegionBermuda
- Hydroplast piping system S.L.
- Main business:
- Southern EuropeSpain
- Cangzhou Qunyi Pipe Fitting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Leinuoer Electrical Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Qingdao Zhongyu Industry Part Co.,Ltd,
- Main business:
- Caribbean RegionBermuda
- Baoji Fitow Metals Co.,ltd
- Main business:
- Caribbean RegionBermuda
- Huitong Thermo element Factoal
- Main business:
- Caribbean RegionBermuda
- Shenzhen Penggong Construction Machinery Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Mediconnex Industry Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Shijiazhuang Daye Metal Powder Company
- Main business:
- Caribbean RegionBermuda