... , but has no central reinforcement wire.Like barbed wire, barbed tape is available as either straight wire or spiral concertina wire. Unlike barbed wire, which usually is available only ... , 34±1, 45±1, 40±1, 100±2USE Type A - Concertina razor wire Outside dia.:450, 500, 600, 700, 800, 900, 960, 980mmNo ...