Used correctly, 'alloy' tells nothing about whether the metal is aluminum or steel or titanium. Often used to mean aluminum.
Curious to know what the OP means by 'alloy'.
If you wear a bag over your head, be sure to cut out eye, mouth and nose holes, so you can see and breathe.
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Bacchetta Giro A20, RANS V-Rex, RANS Screamer