concertina wire Wire dia:BWG12-BWG20 3.Barbed distance:26- ... -10,12,18,22,28,CBT-60,65. concertina wireis a kind of modern security fencing materials fabricated ... with razor-sharp steel blade and high-tensile wire. Razor Barbed wire can be installed to achieve the result ... special designs making climbing and touching extremely difficult. The wire and strip are galvanized to prevent corrosion.Currently, ...