NAME: Razor barbed wire and Razor barbed tape KIND: 1.Concertina cross 2.Concertina single 3.Sgraight type. 4. Long blade type. SIZE: according to customer抯 requirement. MATERIAL: razor-sharp steel blade and high-tensile wire. USE: It has been widely used by many countries in military field, prisons, detention houses, government building and other national security facilities, etc.