长度51厘米等于多少寸-51*6的无缝钢管多少钱

28×3-3.5-4-5-6

133×4.5-6-8-12-14-16-18-20-25-30

351×10-16-20-25-40

32×3.5-4-5-6-8

140×5-6-7-8-9-10-12-14-16-20-22

355×6-18-20-25-30-40/52

34×4-5-6-8

146×4.5-6-8-12-14-16-18-20-25-30

377×8-12-15-20-24-28

36×3.5-5-6-8

152×4.5-6-8-12-14-16-18-20-25-30

377×30-37-40-45-50

38×4-5-6-7-8-9-10

159×4.5-6-10-12-14

402×10-15-20-25-30-35

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