How it is made
| Machine | Takes | Makes | Time | Per machine, a day |
|---|---|---|---|---|
 Extruder ★ |  2 × Steel |  1 × Steel beams | 6 s | 40 steel beams |
The chain behind one unit
- 1Steel beamsExtruder 6 s
From the land, one unit takes 4 iron ore, 2 coal: $124 of raw goods, against a worth of $487.
What it is used for
| Machine | Takes | Makes | Time | Per machine, a day |
|---|---|---|---|---|
 Assembler | 3 × Steel beams  1 × Machine parts |  1 × Tank traps | 8 s | 30 tank traps |
| Assembler |  6 × Concrete 2 × Steel beams  2 × Sheet steel |  1 × Bunker kit | 20 s | 12 bunker kit |
| Assembler |  8 × Planks 1 × Steel beams 2 × Machine parts |  1 × Watchtower kit | 14 s | 17 watchtower kit |
Selling it
- On the players' market, from or into your storage; the seller pays a 3% fee.
- To towns of level 3 and up, within 30 km of your storage: L3 $616 · L4 $644 · L5 $672 a unit.
Keeping it
Steel, building materials, cars and defences are kept in:
By rail it rides in flat wagons.