They can be used as is in the production of weapons and construction of buildings, or further refined into Steel Bars.
Starting out, the production of iron plates must be operated by at least one worker, though through research, can eventually be turned into an automated process.
Uses Iron Plates Edit
Iron plates are extremely common loot in the Kenshi world, whether you're scavenging an Ancient Lab, Lost Armoury, or helping yourself to an unwary trader's stock. They can be acquired from merchants in most cities.