this suggestion is about putting more materials in.
with which i mean aluminium, brass, steel, chrome, zinc, nickel, cobalt and so on
and with those you can make better tools, out of Al f.Ex.
I would really like to see a bit more chemical detail in this mod
I also like the armor of this mod, and would find it oretty cool
if there where more armor. same with tools.
here are other examples i would like to see:
magnets, with which you can easier find cobalt, nickel and iron
steel as "better than refined iron" 
(also for tools, simmilar to bronze)
chrome plated aluminiumengines for better machines or even new machines
thank you
yours sachsenschnitzel, big fan