12cr1movg钢管 22-28X2.5-4-6 12cr1movg钢管 32-38-40X3-4-6-8 12cr1movg钢管 42-48X3.5-4-5-8-10 12cr1movg钢管 51-60X3.5-5-6-7-9 12cr1movg钢管 76-89X4.5-6-8-10-12 12cr1movg钢管 108-133X5-6-8-10-12 12cr1movg钢管 159-168X7-8-10-14-18-26 12cr1movg钢管 194-219X6-8-12-20-26-38 12cr1movg钢管 245-273X10-12-14-16-22-15-40 12cr1movg钢管 325-355.6X11-14-16-20-30-40 12cr1movg钢管 377-426X11-14-16-20-25-40-45 12cr1movg钢管 426-508X14.2-17.5-22-45-52 12cr1movg钢管 530-558.8X16.8-60-70
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