Barbed wire, mainly used to slow the movement of infantry and vehicles, is divided into fixed and mobile types. Fixed barbed wire is constructed of barbed wooden piles and wire; Mobile barbed wire is temporarily set up by the factory after mass production and transported to the battlefield, with a diameter of 70-90 cm and a length of about 10 meters, with fast installation speed, high anti-destruction strength, and can slow down the movement of vehicles such as cars and armored vehicles. When people think of barbed wire, they usually think of special scenes such as battlefields, prisons, and border lines. Indeed, barbed wire, once invented, was widely used in military and defense engineering; Today, in peacetime, barbed wire is also widely used.