合金钢管规格有 152×4.5-6-8-12-14-16-18-20-25-30 480×10-12-14-16-18-20-25-30-40 34×4-5-6-8 159×4.5-6-10-12-14 500×10-12-14-16-20-25-34-40-50 36×3.5-5-6-8 159×16-18-20-22-25-30 510×10-12-14-16-20-25-34-40-50 38×4-5-6-7-8-9-10 168×8-10-12-14-20-25-30-35 530×10-12-14-16-18-20-30-40 39×3.5-5-8-10 180×8-12-16-25-30 560×10-14-16-20-25-30-40-50-60 42×3.5-4-5-6-7-8-9-10 180×32-34-38-40-45-50 580×10-14-16-20-30-40-50-70 45×3.5-4-5-6-7-8-9 194×6-8-12-16-20-25-30-40-45-50 600×10-14-18-25-20-30-50-60 48×3.5-4-5-6-7-8-9-10 203×6-7-10-15-20-25-30 610×10-14-18-25-20-30-50-60 51×3.5-4-5-6-7-8-9-10 203×32-36-40-45-50 620×14-20-30-35-45-50-60 56×3.5-4-5-6-7-8-9-10 219×6-8-12-16-18-20-25 630×10-20-30-40-55 57×3.5-5-6-7-8-9-10-12