- Hunan Great Steel Pipe Co.Ltd
- GlobalAsiaMain camp:Worldwide
- The development of Tianjin Steel Trading Company Limited
- GlobalAsiaMain camp:无缝钢管,镀锌方管,镀锌槽钢,角钢,扁钢
- Ren Yun Trading Co. Yunnan, Ltd.
- GlobalAsiaMain camp:螺纹钢-高线-盘螺,槽钢-角钢-工字钢,扁铁-圆钢-轨道钢,钢管-钢板-螺旋管,方管-焊管-花纹板,镀锌管-镀锌【卷】板,钢塑复合管-无缝管,H型钢-C型钢,架子管-低合金板,彩钢瓦-树脂合成瓦,吹氧管-锅炉管,不锈钢管-不锈钢板,钢管折弯-钢板开平,镀锌钢材-PVC管 ,PPR管-PE管