- Tianliancheng Industry and Trade Co. Ltd
- Address:Address: NR 49, Wujiaohua Market, Daqiuzhuang Town, Jinghai County, Tianjin, China Tianjin, Tianji
- World Machinery Manufacture and Trading Co.,LTD
- Address:Business Room 03, Building 11, Tengdoudijing, Jinghe Street Tengzhou City, Shandong Province, China. Zaozhuang, Shandong
- Hengli Pipefitting
- Address:Dongfeng Road Shijiazhuang, Hebei
- Wenzhou ALS Stainless Steel Co., Ltd.
- Address:No.151, Hongrui Road Wenzhou, Zhejiang
- Ningbo Changlong Auto Parts Manufacturing Inc.
- Address:RM 403,--19# , Building 6 , zhonggongmiao, Jinting jiayuan , Ningbo,China Ningbo, Zhejiang
- Xingheng Petroleum Machinery Parts Co.,Ltd
- Address:xinbei road Tianjin, Tianji
- Shanghai Ruihe Enterpris Group Co,Ltd
- Address:o 188 yaoxin road shanghai china Shanghai, Shanghai
- Shanghai Shangsu Holdings Grou
- Address:No.88 shangsu road qinggang economic zone Shanghai,
- Hebei Jimeng Highstrength Flang_tuber Group Co.,Ltd.
- Address:North Circle Industrial Area of Mengcun County, Cangzhou, Hebei Cangzhou, Hebei
- Hebei HengTong Tube Company
- Address:Room 2007, Huatengbeitang Building,No.37 Nanmofang Road ,Chaoyang District Beijing,100021 P.R. China Beijing, Beijing
- Corner Hard Materials Co.,Ltd
- Address:National High Technology Zone, Zhuzhou Zhuzhou, Huna
- Joinwin-steel Ltd
- Address:jinshuiqu Zhengzhou, Hena
- NingHai TaiWei Copper Industrial Co.,Ltd.
- Address:53# HuanCheng East RD,LiYang Town, Ningbo, Zhejiang
- Chongqing Dazu Longgang Fitting Co.,Ltd
- Address:Longshui Industrial Park, Dazu District Chongqing, Chongqing
- Cangzhou Kaiwei Pipeline Co.Ltd
- Address:YUNHE QU Cangzhou, Hebei
- Jonloo Valve Manufacturer Company
- Address:No.48, Jian'an Road, Industrial Zone, Fengjing Town, Jinshan Shanghai, Shanghai
- Wenzhou Donghao Valve and Pipe Fitting Co., Ltd.
- Address:No. 619 Hongrui Road, Shacheng Town Wenzhou Longwan District Wenzhou, Zhejiang
- Yuyao Hydraulic Tube Co,.Ttd
- Address:No.5 Zishan Road Industry Area ZhangtingTown Ningbo, ??
- Gm Industrial Limited
- Address:donggang road Shijiazhuang, Hebei
- Liaocheng Yongtongda Commercial and Trading Co.Ltd.
- Address:the east end of liaohe road,liaocheng city,shandong province Liaocheng, Shandong