- Beijing Hongshengyu Trading Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shijiazhuang Tengfei Malleable Iron Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yingkou Ouyang Steel Tube Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yuhuan Guohong Valve Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Beijing Tian-Long Tungsten & Molybdenum Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Hefei ningtai vacuum equipment co.,ltd
- Main business:
- Caribbean RegionBermuda
- Tianjin JTWTS Valve Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Xiamen Sprinking Industry,Co,ltb
- Main business:
- Caribbean RegionBermuda
- Guangzhou Kingurad Auto Parts
- Main business:
- Caribbean RegionBermuda
- Zhejiang Zhongzheng Valve Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yingkou ZICN Pipe Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Hongrun Heavy Industrial Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Yuyao Megaflow Fitting & Valves Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yunnan Senxingyuan Trading Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Tianyuan Steel-Pipes Production Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wenzhou Kingbote Valve Pipe Fittings Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Linyi Oriental Pipe Fittings Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cixi City Youtian Pneumatic Component Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Furuida Pipeline Equipment Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hunan Mec Machinery & Electronics Imp. & Exp. Corp.
- Main business:
- Caribbean RegionBermuda