铝和铝合金。冷拔线材棒材和管材。第2部分：机械性能。

Aluminium and aluminium alloys. cold drawn rod bar and tube. part 2 : mechanical properties.

youdao

铝和铝合金。冷拔线材棒材和管材。第2部分：机械性能。

Aluminium and aluminium alloys. cold drawn rod bar and tube. part 2 : mechanical properties.

youdao