Could beryllium and holmium items get casting recipes similarly to iron and copper items? Like this:
Molten beryllium + Molten iron > Aeroframe pole
Molten holmium + Plastic > Holmium cable
Molten beryllium + Molten iron + Cryonite rod > Aeroframe scaffold (?)
Molten holmium + Molten iron + Plastic > Holmium solenoid (?)