- WuXi Free Petroleum Pipe Manufacture Co., Ltd.
- Address:No.88 Xiyi Road Wuxi Jiangsu 214111 China
- Zhangjiagang Huadian Emport&Export Co.,Ltd
- Address:Chengzhong Road, Chengyang Town Suzhou Jiangsu 215600 China
- Tianjin Huilifeng Anti-Corrosion and Insulation Steel Pipe Co.,Ltd.
- Address:Yuzhuangzi Village, Dafengdui Town Tianjin Tianjin 301600 China
- Hebei Zewo Steel Pipe Manufacturing.,Ltd
- Address:Xindian Industry Zone Cangzhou Hebei China Cangzhou Hebei China
- Bei Jing Smart International Group,Co,LTD
- Address:Room810, Times Building of ChaoYang District BeiJing city PRC Beijing Beijing 100086 China
- Liaocheng Xinglong Seamless Tube Manufacturing Co., Ltd
- Address:No.3 Taishan Road, Economic Development Zone, Liaocheng, Liaocheng Shandong China
- Tianjin Jinshihongfeng Trade Co,Ltd
- Address:Suite2308,23/F,TowerA,Wanda Plaza,55JinbinRd,Hedongdistrict,Tianjin Tianjin Tianjin 300160 China
- Jiangsu Jionme Steel Co.,Ltd.
- Address:No.23 East Wandu Metal City, No.1 Qingyang middle road, Changzhou, China Changzhou Jiangsu 213000 China
- Shanghai Jin Xi Materials Co., Ltd
- Address:A11-12, Bldg. 5, Baiwang Building Material Market, 1116 Yueluo Road, Baoshan Dist., Shanghai, China Shanghai Shanghai China
- Cangzhou Spiral Steel Pipe Group (CSSPG) Co., Ltd
- Address:No.92 Jiefang East Rd, Cangzhou,Hebei Province, PR China Cangzhou Hebei China
- Shandong Liaocheng Shenhao Metal CO,.LTD
- Address:NO.26 taishan road Liaocheng Shandong 252000 China
- Beijing OHC International Steel Structure Engineering Co., Ltd
- Address:RM1101 Huateng Xintiandi Building, 195# Mid-East 4th Ring Road. Chaoyang Dist. Beijing Beijing Beijing China
- Tianjin Jinnuo Steel Pipe Co.,Ltd
- Address:Datun Village, Daqiuzhuang Town, Jinghai county, Tianjin, China. Tianjin Tianjin China
- Tangshan Fengrun Kaiwei Steel Co., Ltd
- Address:North of Dabali Village, Fengrun District Tangshan Hebei 064000 China
- Hebei Gongyuan Pipe Maunfacture Co., Ltd
- Address:Xianggang Road,Shinan District,Qingdao City Qingdao Shandong China
- Hebei Haodong International Co.Ltd
- Address:No.5 E2 District Xintiandi Shopping Mall Tangshan Hebei China
- Hebei Pengxin Group Bo Tao Pipeline Manufacturing Co,.Ltd
- Address:Mengcun Hui Autonomous County Song Zhuangzi Industrial Zone Cangzhou Hebei 068108130 China
- Tianjin JianCai Steel Co.,Ltd
- Address:No.46, Building B, Binhai Steel Market, Dongli District Tianjin Tianjin 300000 China
- JunYe Color Steel Co.,Ltd HeBei China
- Address:No.31,steel market,Fengrun zone,Tangshan,Hebei,China Tangshan Hebei China
- Yantai Debao Steel Pipe Co., Ltd
- Address:Changjiang Road Yantai Shandong China