宁波国标钢管直径规格，无缝钢管直径规格表

钢管直径规格 22-28X2.5-4-6
钢管直径规格 32-38-40X3-4-6-8
                 42-48X3.5-4-5-8-10
                 51-60X3.5-5-6-7-9
                 76-89X4.5-6-8-10-12
                 108-133X5-6-8-10-12
钢管直径规格 159-168X7-8-10-14-18-26
                 194-219X6-8-12-20-26-38
                  245-273X10-12-14-16-22-15-40
钢管直径规格 325-355.6X11-14-16-20-30-40
                 377-426X11-14-16-20-25-40-45
台州钢管直径规格 457.2-508X14.2-17.5-22-45-52
                 530-558.8X16.8-60-70