How to prevent cabinet rub off

Any equipment used for a long time, the surface of it will be hard to avoid fade, we can do is to pay attention to some details of the daily management, prevent cabinet rub off as much as possible.
we best buy when buying rack material for cold rolled steel cabinet, and the surface of the cabinet to have plastic spraying. Made cabinets have a plenty of iron on the market, easy to rust rub off the rack.
we are in the cabinet, in the daily management of the need to protect the cabinet surface not to scratch. Best mobile rack, less as far as possible to keep clean on the surface of the cabinet.