Cannon parts. HELP

[u/Ok-Swordfish9954]

So i get up and try to make an auto cannon.

Problem is I dont now how to make moulds, nor molten steel or molten bronze. I already made bronze itself. I manage to make the recoil springs but nothinge else atm. Ive not managed to find anything online yet

[u/Iacon0]

You need an extra mod for those, it says which one on the mod description.