Metal wire straightening is an engineering work required for machines and tools. There are many products for which straight metallic wires are needed but the wires in distorted shapes. How these pieces are straightened? Could you it with your hands? You need some tools like a hook on which you can fix one end of the metallic wire and then you can stretch the wire.
Opening locks in the wires
Distorting of shape could form locks that can be opened even with hammer. If you try hammering the locks with force, you can break the pieces. To open locks, you need a device that can pull the wire with such a force that the locks get opened. You need a machine to do the job and you can easily buy the machine from market. It is available at affordable price and you don’t need a trained worker to run the machine.