藝術與建築詞典根目錄
....材料層面
........材料 (材料層面)
............材料
................<依成分區分之材料>
....................無機材料
........................金屬
............................<依成分或來源區分之金屬>
................................<鐵與鐵合金>
....................................鐵合金
........................................鋼 (合金)
............................................碳鋼
|||................................................滲碳鋼
|||................................................低碳鋼
|||................................................中碳鋼
|||................................................高碳鋼
............................................合金鋼
................................................鉻鋼
................................................高強度低合金鋼
|||................................................鎳鋼
|||................................................鋼鋁合金
|||................................................結構鋼 [N]
|||................................................鈦鋼