45号厚壁钢管中钢联报价219*55 4450元/吨219*60 4480元/吨219*65 4680元/吨245*55 4450元/吨245*60 4680元/吨245*65 4780元/吨245*70 4850元/吨273*55 4480元/吨299*60 4580元/吨299*65 4650元/吨325*50 4550元/吨325*60 4680元/吨351*55 4680元/吨351*65 4780元/吨377*55 4880元/吨402*45 4800元/吨价格提供来源于 标签：[db:标签]