- Cangzhou Xinhua Precision Equipment Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Jonsteel Pipe And Fitting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Yingpei Hardware Products Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shenzhen Xinxing Metal Technology Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Xinhui Precision Casting Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Jiangxi TaiDaChangLin Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanxi Longfa Trade Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Yongwang Pipeline Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Liaoning Jiayi Metals & Minerals Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Xuli Rubber & Plastic Technology Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yanshan Hongxinda Steel Pipe Manufacture Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Mengcun Hui Automy County Yantong Pipe Fittings Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shandong Hongmin Roller Mould Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Better Trading (China) Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanghai Longsheng Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Sino Tub Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shanxi Dingxiang Tengda Forging Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yuyao Ostar International Trading Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Ruichang Pipe Fitting Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Dalian Hongsheng Machine Co., Ltd.
- Main business:
- Caribbean RegionBermuda