大连20#无缝钢管报价行情-东北销售专栏 89×4.5-8-10-12-14-16-18-20 95×4.5-6-8-10-12-14-16-20 102×4.5-5-6-7-8-10-12-14-16-20 108×4.5-5-6-7-8-10-12-14-18-20-22 114×4.5-5-6-7-8-10-12-14-18-20 121×4.5-5-6-7-8-10-12-14-16-20
89×4.5-8-10-12-14-16-18-20
95×4.5-6-8-10-12-14-16-20
102×4.5-5-6-7-8-10-12-14-16-20
108×4.5-5-6-7-8-10-12-14-18-20-22
114×4.5-5-6-7-8-10-12-14-18-20
121×4.5-5-6-7-8-10-12-14-16-20