简要说明：营口大口径无缝钢管，理论重量

营口大口径无缝钢管，理论重量

39×3.5-5-8-10	159×16-18-20-22-25-30	406×10-20-25-28-35-40
42×3.5-4-5-6-7-8-9-10	168×8-10-12-14-20-25-30-35	426×10-12-14-16-20-25-30-35-40
45×3.5-4-5-6-7-8-9	180×8-12-16-25-30	450×10-12-14-16-20-25-34-40-50
48×3.5-4-5-6-7-8-9-10	180×32-34-38-40-45-50	480×10-12-14-16-18-20-25-30-40
51×3.5-4-5-6-7-8-9-10	194×6-8-12-16-20-25-30-40-45-50	500×10-12-14-16-20-25-34-40-50
56×3.5-4-5-6-7-8-9-10	203×6-7-10-15-20-25-30	510×10-12-14-16-20-25-34-40-50
57×3.5-5-6-7-8-9-10-12	203×32-36-40-45-50	530×10-12-14-16-18-20-30-40
60×3.5-4.5-5-6-7-8-9-12-14	219×6-8-12-16-18-20-25	560×10-14-16-20-25-30-40-50-60
63×3.5-4.5-5-6-7-8-9-10-12-14	219×30-40-45-50-55	580×10-14-16-20-30-40-50-70
68×4-4.5-5-6-7-8-9-10-12-14-16	219×55-58-60-65-70	600×10-14-18-25-20-30-50-60
70×4-4.5-5-6-7-8-9-10-12-15-16	245×8-10-14-17-20-22	610×10-14-18-25-20-30-50-60
73×4-4.5-5-6-7-8-9-10-12-15	245×25-28-30-34-40	620×14-20-30-35-45-50-60
76×4-4.5-5-6-7-8-9-10-12-14	273×7-9-12-15-18-20-25	630×10-20-30-40-55-75