- Zhuji Jielong Pipe System Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhuji City Howhi Air Conditioners Made Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Yi Shi Hua Pipe Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Shipeng Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Yimiante Hydraulic Equipments Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- MEIWA CO.,LTD
- Main business:
- Caribbean RegionBermuda
- Hebei Wanda Malleable Iron Corp., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangxian Huahai Pipe Fittings Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Duda Pipe Fittings Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei JiMeng Highstrength Flang-Tubes Group Co., L
- Main business:
- Caribbean RegionBermuda
- Wenzhou Kaize Trading Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Beijing Chaoda Bellows Manufacture Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Canghai Heavy Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Aimiduo Copper Valves Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Best Plastics Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Puyang Bao LiTong Petroleum Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhuji Dingfeng Pipe Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yuyao Sunrise Machinery Parts Factory
- Main business:
- Caribbean RegionBermuda
- Hefei Mingpin Metals Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Shengsenyuan Pipe Industries Co., Ltd.
- Main business:
- Caribbean RegionBermuda