Iron Plate

A hard and thin metal plate made by hammering iron. Useful to make structures and tools.
Overview
Iron Plate is a construction material used in large quantities for buildings that consume Electricity. It is one of the key mid-game materials for expanding an industrial base, especially when progressing into more advanced infrastructure.
Because many Electricity-related facilities require Iron Plate, it is efficient to keep production running continuously rather than making it only when needed. 

- Stockpiling Iron Plate helps prevent progress from stalling when multiple power-based buildings become available at once.
- Since Copper wire is another common requirement, planning both materials together avoids bottlenecks in construction.
Official description
A hard and thin metal plate made by hammering iron. Useful to make structures and tools.