- Shandong Yizhong Commercial Trade Co.,Ltd
- Address:dongchangfu district Liaocheng, Shandong
- Tobo Grou
- Address:No.208,Lvdi Road,Baihe Twon,Qingpu District Shanghai, Shanghai
- Shannxi Shew-E Steel Pipe Co.,Ltd
- Address:SanQiao, Feng East New Town, New West Ham Xian, Shanxii
- CNBM International Corporatioi
- Address:Floor 17th, No.4 Building, Zhuyu International Commercial Center, No.9, Shouti South Road,Haidian Di Beijing, Beijing
- Tianjin Jinrunde Steel Trading., Co Ltd
- Address:(Chubao Steel Material Market)Shunyi Road North and Nancang Road South,Beichen District, Tianjin, Ch Tianjin, Tianji
- Qingdao Taha Steel Company
- Address:Qingdao Licang district Qingdao, Shandong
- Cangzhou Ruitai Peroleum Machinery Co.,Ltd
- Address:Wujiafang Factiry Area,Nanpi County, Hebei, P. R.China Cangzhou, Hebei
- Jiangyin City Changye Metal ProductsMaterial Co., Ltd
- Address:Room 501,Building 3,No.8 West Binjiang Road,Jiangyin City,Jiangsu Province,China Wuxi, Jiangsu
- Cangzhouo Import and Export Co.,Ltd
- Address:cangzhou,hebei,china Cangzhou, Hebei
- Haibao Steel Grou
- Address:A, 6F, Times Plaza, Renmin Road (M), Zhangjiagang Suzhou, Jiangsu
- Tianjin Up Steel Grou
- Address:Hexi District,Tianjin, China Tianjin, Tianji
- JiangSu Huangshu
- Address:No.1 Tengfei Road,Dinggou Town, Yangzhou, Jiangsu
- Zhonghai Baichuan Beijign Steel Company
- Address:Beijing Da Xing City Gaomidian North Qingdao Jiaayuan Beijing, Beijing
- Sino East
- Address:Tianjin Idustrial Park.Daqiuzhuang Tianjin, Tianji
- Shanghai Zhongben Special Section Tube Co., Ltd.
- Address:Baoshan District Yueluogonglu Maojialu 23# Suzhou, Jiangsu
- Tianjin Hengji Steel Company
- Address:hexi no258, tianjin,China Tianjin, Tianji
- Qingdao Jiuzhou Materials., Ltd.
- Address:No.65, Shangyuan road, Licang district, Qingdao, China Qingdao, Shandong
- Tangshan Yingdong Steel
- Address:LONGZE ROAD Tangshan, Hebei
- Shanghai Tianyang Steel Tube Corporatio
- Address:No.4638 Jinqian Road,Qianqiao,Fengxian,China. Shanghai, Shanghai
- Dangyang Hualong Superior Steel Co.,Ltd
- Address:Yunhe town Zhenjiang, Jiangsu