Concertina barbed wire, also called barbed wire concertina, is a combination of common barbed wire and concertina razor wire. Generally, it is made of high tensile single round steel wire and four twisted barbed wire spikes. The single round wire is made of steel wire or stainless steel wire with special surface treatment. While the twisted barbed wire spikes only can be made of iron wire. And the barb spikes are fixed at regular intervals. The same as concertina razor wire, concertina barbed wire is also widely used on top of the existing fences or solid walls, in border, emergence events or military activities.
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