This is silly.
Centrifuge+Lava - copper, tin and tungsten
Electrolyzer+Clay - Aluminium, titanium, silicon
Aluminium is an option to replace iron - effectively extending the resource of iron in many recipes. Titanium does the same. Titanium, Tungsten, and Silicon all are part of recipe output increases.
He's gone off the deep end recently, as I already said, but the primary result of installing GT is that resources increase but not in a looped, duping, manner like some other mods. Which is what I said that you're replying too.
You've just seriously proven that you are functionally illiterate, not even reading the message you replied to.