You will quickly learn how useful crafting is in Fall of Babylon, but it will use a lot of materials. Fortunately, there are many ways to get these, including the recycling mechanic.
Crafts & Forge Overview – Fall of Babylon
Crafting is an important mechanic in Fall of Babylon, but it requires a lot of materials, some of which can take a while to collect. To make this process a little less difficult, the developers included a mechanic called Recycling.
In short, Recycling allows you to take apart items you no longer need for crafting materials. You do this in Ishmur's forge, so you need to get to the point in the story when this location becomes available.
The amount of material this process will yield depends mostly on the items selected, but you can get better results with one more trick.