- Cangzhou hongxin pipe fittings co., LTD
- Main business:
- Caribbean RegionBermuda
- Hebei Jianzhi Insulator Caps Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Dalian Yuansheng Pipe fitting Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Gongyi Hengzhong Water Materials Supply Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Baoding ChuanCheng Machinery Part Trading Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- MYH INTL TRADE Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Hebei metals industrial ltd
- Main business:
- Caribbean RegionBermuda
- Wenzhou Fute Valve Pipe-fitting
- Main business:
- Caribbean RegionBermuda
- HEBEI HENGRUN GROUP CO.,LTD
- Main business:
- Caribbean RegionBermuda
- TOBO Pipeline Equipment (Shanghai) Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Ningbo Yuanchang Mechanical Parts Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- JIANGYIN ZHENGYUAN FLANGE CO.,LTD
- Main business:
- Caribbean RegionBermuda
- Beijing Orient XD Technology Development Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Haihao High Pressure Flange&Pipe Fitting Group Gee Pipe Mill Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- GuoLe Precise Metal CO.LTD
- Main business:
- Caribbean RegionBermuda
- Haixing Wedge Wire Co., LTD
- Main business:
- Caribbean RegionBermuda
- Flyer Hardware Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- YUHUAN HONGDAER VALVE CO.,LTD
- Main business:
- Caribbean RegionBermuda
- Yingkou ZICN Pipe Manufacturing Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Qingdao Xintai Carbon
- Main business:
- Caribbean RegionBermuda