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표준단면치수 Standard Sectional Dimension (mm) 단위중량 Unit Weight 폭 두께 (㎏/m) 12 3 0.238 12 4.5 0.424 13 3 0.306 13 4 0.408 13 4.5 0.459 13 6 0.612 16 3 0.377 16 4 0.5 16 4.5 0.565 16 6 0.754 19 3 0.447 19 4 0.6 19 4.5 0.671 19 6 0.895 22 3 0.518 22 4.5 0.777 22 6 1.04 25 3 0.589 25 4 0.883 25 6 1.18 25 9 1.77 25 12 2.36 32 3 0.754 32 4 1.005 32 4.5 1.13 32 6 1.51 32 9 2.26 32 12 3.01 32 16 4.02	표준단면치수 Standard Sectional Dimension (mm) 단위중량 Unit Weight 폭 두께 (㎏/m) 38 3 0.895 38 4 1.19 38 4.5 1.34 38 6 1.79 38 9 2.68 38 12 3.58 38 16 4.77 38 19 5.67 44 4.5 1.55 44 4 2.07 44 9 3.11 44 12 4.14 44 16 5.53 44 19 6.56 50 3 1.18 50 4.5 1.77 50 6 2.36 50 9 3.53 50 12 4.71 50 16 6.28 50 19 7.46 50 25 9.81 55 3 1.53 65 6 3.06 65 9 4.59 65 12 6.12 65 16 8.16 65 19 9.69 65 25 12.8
표준단면치수 Standard Sectional Dimension (mm) 단위중량 Unit Weight 폭 두께 (㎏/m) 75 6 3.53 75 9 5.3 75 12 7.06 75 16 9.42 75 19 11.2 75 25 14.7 90 6 4.24 90 9 6.36 90 12 8.48 90 16 11.3 90 19 13.4 90 25 17.7 100 6 4.71 100 9 7.06 100 12 9.42 100 16 12.6 100 19 14.9 100 25 19.6 125 6 5.89 125 9 8.83 125 12 11.8 125 16 15.7 125 19 18.6 125 25 24.5 150 9 10.6 150 12 14.1 150 16 18.8 150 19 22.4 150 25 29.4	표준단면치수 Standard Sectional Dimension (mm) 단위중량 Unit Weight 폭 두께 (㎏/m) 180 9 12.7 180 12 17 180 16 22.6 180 19 26.8 180 25 35.3 200 9 14.1 200 12 18.8 200 16 25.1 200 19 29.2 200 25 39.2 230 9 16.2 230 12 21.7 230 16 28.9 230 19 34.3 230 25 45.1 250 9 17.7 250 12 23.6 250 16 31.4 250 19 37.3 250 25 49.1 280 12 26.4 280 16 35.2 280 19 41.8 280 25 55 300 12 28.3 300 16 37.7 300 19 44.7 300 25 58.9
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