Immisa jeer ayay dhexroorka asalka ah ee aluminiumka indhoolayaasha ah ee laalaada ah uu ahaa?

Qiyaastii 1.5 jeer, laakiin tani waa qiime tixraac oo keliya, isbeddellada rivets-ka ee noocyada kala duwan ee rivets-ka aluminium-kana way kala duwan yihiin.