小口径钢管直径规格 22-28X2.5-4-6
小口径钢管直径规格 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
钢管直径规格 457.2-508X14.2-17.5-22-45-52
530-558.8X16.8-60-70