| 牌号 | A678 Grade A |
|---|---|
| 對應标準 | ASTM A678/A678M-2000
淬火加回火的碳及高強度低合金結構鋼闆用标準規範 Standard Specification for Quenched-and-Tempered Carbon and High-Strength Low-Alloy Structural Steel Plates |
| 歸類 | 碳鋼 |
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