Respuesta :

ambreenfatima4123

Answer:

In addition to aluminium, the main materials in duralumin are copper, manganese and magnesium.

beasyholli2

Answer:

The original composition has been varied for particular applications; it may contain about 4 percent copper, 0.5–1 percent manganese, 0.5–1.5 percent magnesium, and, in some formulations, some silicon.