
เหล็กข้ออ้อย |
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| เกรด | ความหนา (mm.) | 1 M. | 10 M. | 12 M. | ||||
| เหล็กข้ออ้อย SD30 | 10.00 | 0.616 | 6.16 | 7.392 | ||||
| 12.00 | 0.888 | 8.88 | 10.656 | |||||
| 16.00 | 1.578 | 15.78 | 18.936 | |||||
| 20.00 | 2.466 | 24.66 | 29.592 | |||||
| 25.00 | 3.853 | 38.53 | 46.236 | |||||
| 28.00 | 4.834 | 48.34 | 58.008 | |||||
| 32.00 | 6.313 | 63.13 | 75.756 | |||||
| เหล็กข้ออ้อย SD40 | 10.00 | 0.616 | 6.16 | 7.392 |
||||
| 12.00 | 0.888 | 8.88 | 10.656 |
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| 16.00 | 1.578 | 15.78 | 18.936 |
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| 20.00 | 2.466 | 24.66 | 29.592 |
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| 25.00 | 3.853 | 38.53 | 46.236 |
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| 28.00 | 4.834 | 48.34 | 58.008 |
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| 32.00 | 6.313 | 63.13 | 75.756 |
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| เหล็กข้ออ้อย SD50 | 12.00 | 0.888 | 8.88 | 10.656 |
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| 16.00 | 1.578 | 15.78 | 18.936 |
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| 20.00 | 2.466 | 24.66 | 29.592 |
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| 25.00 | 3.853 | 38.53 | 46.236 |
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| 28.00 | 4.834 | 48.34 | 58.008 |
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| 32.00 | 6.313 | 63.13 | 75.756 |
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