Frame

1x 1x
x 75

Requires

  Advanced electronics
  Steel processing

Allows

  Upgraded Radars 2
  Good Frame
  Upgraded Mining Drills 3
  Upgraded Tanks 2
  Metallurgic Ore Smelting 1
  Upgraded Pumpjacks 2
  Electric energy accumulators 2
  Upgraded Steam Power 2

Unlocks

  Good Frame