Can a 13.95-meter skeleton semi-trailer be added with a flat plate?

Can a 13.95-meter skeleton semi-trailer be added with a flat plate? 

Comply with national regulations and cannot  skeleton semi-trailer be added with a flat plate modify flatbed trucks, which does not comply with the provisions of China's Road Traffic Safety Law. Unauthorized change of vehicle type or purpose, refers to unauthorized change of passenger car to truck, truck to passenger car, ordinary truck to special truck, special truck to ordinary truck, sleeper bus to seat bus, seat bus to skeleton semi-trailer be added with a flat plate  sleeper bus will be impounded and punishment.