What kind of car is a white license plate starting with 'sz'?

[NoahLee]

White license plates starting with 'sz' are vehicles from the Shenyang Military Region. White vehicle license plates: These are special license plates used exclusively by law enforcement departments (public security, courts, procuratorates, state security, and justice) for police vehicles, military vehicles of the People's Liberation Army, and armed police force vehicles. Military vehicle license plates are identifiers for all military vehicles, issued by the transportation department after reviewing, inspecting, and registering the vehicles applying for plates. They serve as proof of the special operational rights granted to military vehicles by the state. Commonly known as license plates: Also referred to as vehicle registration plates, these are plates affixed to the front and rear of vehicles, typically made of aluminum, sheet metal, plastic, or paper. They bear the vehicle's registration number, registration region, or other relevant information. The primary purpose of license plates is to identify the region to which the vehicle belongs and to allow tracing of the vehicle's owner and registration details based on the plate number.