- Hunan Great Steel Pipe Co.Ltd
- GlobalAsiaMain camp:Worldwide
- Tianjin Feilong Tube Co. Ltd.
- GlobalAsiaMain camp:大棚管,镀锌大棚管,正宗牛头牌镀锌管,温室大棚镀锌管,蔬菜大棚镀锌管,农业温室大棚管,葡萄大棚镀锌管,热镀锌管大棚管,方矩管大棚管,螺旋管,农业温室大棚钢管,温室大棚,牛头牌镀锌管,钢管,热扩管,牛头牌大棚管,天津大棚管,温室大棚管,
- Wuxi city Xijie Steel Co. Ltd.
- GlobalAsiaMain camp: