5月30日汤原县76*6的20#无缝钢管价位
68×4-4.5-5-6-7-8-9-10-12-14-1670×4-4.5-5-6-7-8-9-10-12-15-1673×4-4.5-5-6-7-8-9-10-12-1576×4-4.5-5-6-7-8-9-10-12-1483×4.5-5-10-12-14-16-18-20