海量資源,盡在掌握
 1.熱軋扁鋼(GB/T704-1988)(表4-10)表4-10 熱軋扁鋼的尺寸及質量(續(xù)表)(續(xù)表)(續(xù)表)(續(xù)表)2.優(yōu)質結構鋼冷拉扁鋼(YB037-2005)(表4-11)B—寬度 d—厚度表4-11 優(yōu)質結構鋼冷拉扁鋼的尺寸及質量(續(xù)表)3.塑料模具用扁鋼(YB094-1997)(表4-12)B—寬度d— (共 178 字) [閱讀本文] >>