The first thing we need to know is that the razor wire is heavily used in military bases, defense borders and prisons. The protection of common guardrail nets is mainly used in the factory, construction site and one

People's courtyard wall and other places, ordinary guardrail netease pull, can climb, defend "the gentleman" and cannot defend "small person". The net of the blade is more sharp than the common guardrail net

The knife, the hand can not touch, the foot can not climb, resolutely prevents the people from overstepping, has the strong threat and the organization effect. So it's better to defend against "small people"

advantage