无缝钢管国标工字钢质量为本

815×30-70

245×9-10-12-14-16-18

108×5-6-8-10-12-14

630×12-16-20-25-30-50

219×28-30-35-40

102×16-18-20-22-25

530×12-14-16-18-30-40

219×14-16-18-20-22-25

102×4.5-6-8-10-12-14

508×12-20-30-40-55

219×6-7-8-9-10-12-14

95×6-8-10-12-14-16

480×12-14-20-25-50

203×18-20-22-25-35

89×4.5-6-7-8-10-14-16

457×12-16-18-20-45

203×7-8-10-12-14-16

83×4.5-6-8-10-12-14

450×10-12-16-20-35-50

194×18-20-22-25-30

76×4-6-7-8-10-12-16-20

426×20-22-28-30-32

194×7-8-9-10-12-14-16

73×4-6-8-10-12-16

426×12-14-16

180×18-22-25-28-30

68×4-6-8-10-12-14

406×22-25-28-30-32-35-40-45

180×7-8-10-12-14-16

63.5×4-6-8-9-10-12

406×10-12-14-16-18-20

168×18-20-22-25-30

60×3.5-4-5-6-7-8-9-10

402×38-40-45-50

168×5-6-8-10-12-14-16

57×3.5-4-6-7-8-10

402×22-25-28-30-34

159×16-18-22-25-30

54×3.5-4-5-6-8-10-12

402×10-12-14-16-18-20

159×5-6-8-10-12-14

51×3.5-4-5-6-8-10

377×32-35-38-40-45

152×16-18-20-22-28

48×3.5-4-5-6-8-10-12

377×20-22-25-28-30

152×5-6-8-10-12-14

45×3.5-4-5-6-7-8-10

377×10-12-14-16-18

146×18-20-22-25-30

42×3.5-4-5-6-7-8-10

351×32-35-40-45

146×6-8-10-12-14-16

38×3.5-4-5-6

351×20-22-25-28-30

140×16-18-20-22-25

34×3-3.5-4-5-6

351×10-12-14-16-18

140×5-6-7-8-10-12-14

32×3-3.5-4-5-6

325×32-35-40-45

133×16-18-20-22-25

30×3-3.5-4-6

325×20-22-25-28-30-32

133×5-6-7-8-10-12-14

28×2.5-3-4-4.5-6

325×9-10-12-14-16-18-20

127×18-20-22-25-30

25×2.5-3-3.5-4-5

299×22-25-28-30-35

127×6-7-8-10-12-14-16

22×2-2.5-3-4

299×10-12-14-16-18-20

121×18-20-22-25-30

20×2-2.5-3-4.5

273×32-35-40

121×6-8-10-12-14-16

18×2-2.5-3

273×20-22-25-28-30

114×14-16-18-20-22-25

16×2-2.5-3

273×9-10-12-14-16-18

114×5-6-7-8-10-12

14×2-2.5-3

245×20-22-25-28-30-32