- Guantong Technical Research Co., Ltd. of Beijing City
- Main business:
- Caribbean RegionBermuda
- Yingkou Changxin Pipe Fittings Manufacturing Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Dongguan Yuanrui Metal & Plastic Products Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Taizhou Huangyan Kaiji Plastic Mould Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- ZheJiang Dong Fang Speed Reducer Co., LTD
- Main business:
- Caribbean RegionBermuda
- Taizhou Guanyu Seal Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Guanbo Machinery Equipment Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Yingkou North Pipe Fittings Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- SSL HEAVY MACHINERY SDN BHD
- Main business:
- Caribbean RegionBermuda
- Cangzou Baisheng Pipe-Fittings Manufacturing Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Shandong Oumai Machinery Manufacturer Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Anhui Kingpower Equipment & Mould Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- HL pipe fittiing co.,ltd.
- Main business:
- Caribbean RegionBermuda
- Jingkong Mechanical & Electric (Shenzhen) Ltd.
- Main business:
- Caribbean RegionBermuda
- Xianxian Goldwit Stainless Steel Products Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Foshan Liangjinguang Hardware Manufacturer
- Main business:
- Caribbean RegionBermuda
- Mengcun Hui Autonomous County Tianyuan Pipe Fitting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Taizhou City Huangyan Lingyu Mould Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Shengtian Pipe-fitting Group Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Ningbo Sunbow Die Casting & Product Co., Ltd.
- Main business:
- Caribbean RegionBermuda