LordWarfire

Yep, although more for the aluminium than the steel!

Aluminium and steel have interesting galvanic reactions when touching each other https://www.albanycountyfasteners.com/blog/stainless-steel-and-aluminum/

Best I could find is the entire division makes about 35% profit and you’d have to assume some of that was YouTube

Revenue is not profit

As a native BrE speaker I’d say “I’ve X installed” is a little weird, fine in speech but written down it doesn’t look right. “I’ve installed X” is fine.