戰鬥機是用什麼金屬造的?

They normally uses aluminium or a bit of titanium, But actually they uses a composities of many materials. Nowaday, they will use a composities, contain, metal outside and ceramics inside to reach the light weight goal!

戰鬥機主要使用鋁製造，亦使用少量鈦及鎢，現在之隱形戰鬥機更會使用碳纖維及及防彈纖維(即塑膠)。

主要是用鋁...鋁合金.....等...要輕既material....

和一d唔講得比人知既秘密material....