A.高純鋁 B.含銅的鋁合金 C.鋁-鎂系 D.鋁-錳系
A.Cr18%、Ni8%、Mn2% B.Cr12%、Ni3%、Mn10% C.Cr18%、Ni3%、Mn2% D.Cr12%、Ni8%、Mn4%
A.1060 B.5083 C.6063 D.ZL102