Junk piles will be gone someday. We will need nails, bolts, sheets etc. Blacksmith should be able to produce anything from metal, including metal armors, metal tool parts (medium metal handle), blades etc.
As source of resources mining can be introduced or anything metal can be melted (old weapons no one uses should be meltable and resuorces re-usable, old metal parts, old bolt etc etc).
- Blades, pick heads, saw heads
- Tool parts
- Metal containers (more durability then baskets)
- Metal armors
- Metal parts required for leathercrafting and tailoring, like metal buckles etc
Blacksmith would be an advanced profession and would require a workshop area, like anvil for example, placed in tribal area. And a fire perhaps?