- Guangzhou Kaidebao Industry & Trade Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Suita Filter Material Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- HUATEC GROUP CORPORATION
- Main business:
- Caribbean RegionBermuda
- Shijiazhuang Beihai Pipe
- Main business:
- Caribbean RegionBermuda
- KKFF BEND(Cambodia) Co.,Ltd.
- Main business:
- Caribbean RegionBermuda
- Nanjing Eastern Trading & Consulting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Top Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Fuweisi International Limited
- Main business:
- Caribbean RegionBermuda
- Qingdao Hexin Da Machinery Co., Ltd
- Main business:
- Caribbean RegionBermuda
- SHANGDONG CHANSHENG PIPE CO.,LTD
- Main business:
- Caribbean RegionBermuda
- Aiersen Electrical Equipment (Zhenjiang) Co. Ltd
- Main business:
- Caribbean RegionBermuda
- Hebei Jinsheng Pipe Fittings Manufacturing Co.
- Main business:
- Caribbean RegionBermuda
- Hebei Dabohai Pipe Fitting Co.,LTD
- Main business:
- Caribbean RegionBermuda
- Sunwell Pipeline Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Landee Flange Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wuhan Xinghuan Aluminium Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Xuzhou Desheng Petrol Machine Parts Co.,Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebeijinsheng pipe fitting manufacturing co,ltd.
- Main business:
- Caribbean RegionBermuda
- Enti Pipeline
- Main business:
- Caribbean RegionBermuda
- DONG WOO E&C CO.,LTD.
- Main business:
- Caribbean RegionBermuda