Barbed wire is a kind of modern security fencing materials fabricated with razorsharp steel blade and high tensile wire . Barbed tape can be installed to achieve the result of frigntening and stopping to the aggressive perimeter intruders,with piecing and cutting razor blades mounted at the top of the wall ,also the special designs making climbing and touching extremely difficult.The wire and strip are galvanized to prevent corrosion.

Gauge of Strand and Barb in B.W.G.	Approximate Length per Kilo in Meter
	Barbs Spacing 3"	Barbs Spacing 4"	Barbs Spacing 5"	Barbs Spacing 6"
12x12	6.0617	6.7590	7.2700	7.6376
12x14	7.3335	7.9051	8.3015	8.5741
12-1/2x12-1/2	6.9223	7.7190	8.3022	8.7221
12-1/2x14	8.1096	8.814	9.2242	9.5620
13x13	7.9808	8.899	9.5721	10.0553
13x14	8.8448	9.6899	10.2923	10.7146
13-1/2x14	9.6079	10.6134	11.4705	11.8553
14x14	10.4569	11.6590	12.5423	13.1752
14-1/2x14-1/2	11.9875	13.3671	14.3781	15.1034
15x15	13.8927	15.4942	16.6666	17.5070
15-1/2x15-1/2	15.3491	17.1144	18.4060	19.3386