Wheel rim material for Mitsubishi Lancer (Emergency)
 

Hi everyone,
I do an assignment on finding the wheel rim material for a Mitsubishi Lancer (all generation).
I try to search for the wheel rim material but all the resuls just show that the rims are made of alloy. I need more information about the alloy such as what type of the alloy, what weight percent, etc.
Is anyone know any source or information about the rim material, please help me?

Thank you so much,
DCC