Metal is a resource item in game
Metal is the most common resource in-game
Can be found by killing enemy npcs or player ships, mining asteroids, or bought at starports.
Used to repair ships hull (more cost effective then paying cash or Black Dollars). Also can be bought for 150 and sold for 75 each at star ports.
You will need more or less metals to repair your ship depending on the hull that you are using.
The amount of metals that you can have at the same time depends on your storage, the bigger the more resources you can carry.