Stud
The stinger is famous for its four thorns; the four-corner nail and the protective nail.
[Function]: Metal obstacles commonly used in military applications.
There are three sizes: the larger one is scattered on the main road to pierce the enemy vehicle tires; the small one is scattered in front of the position and in the depth to prevent the enemy infantry and airborne troops from acting. The middle of the general user garden, factory, airport and other walls and other protection, anti-theft.
