I use a bunch of hoppers with my machines. Being a vanilla MC item, they only can use iron, and that can easily hurt one's iron supplies.
So I propose that an additional recipe for hoppers be added. It is identical to the vanilla recipe, except the iron is replaced with bronze ingots.
This is largely intended for non-GT users of IC. However I'm dimly aware that GregTech can turn hoppers back into metal somehow. So for those who do use GT, this alternate recipe should not create normal hoppers, but a special bronze hopper that is a separate item from the regular hopper but works more or less the same. This way, GT can turn the bronze hopper back into bronze, instead of iron.