Concertina razor wire is made of galvanized steel tape and galvanized steel wire. The galvanized steel tape compresses the core and then wraped to coils. The concertina razor wire could be divided into single coil, crossed coil and flat type. The single coil of razor wire has no clips, the crossed type and flat type of razor wire is connected by clips.
The concertina razor wire can greatly improve the safety factor and be deterrent for robbers. It is widely used as the protective border barrier around the boundary. It can stop the entry through of intruders. When you select supplier of razor wire from China, you would better to check the zinc coating layer level of galvanized steel wire material. The zinc coating of heavily hot dipped galvanized steel wire could be over 250g/m2, but the zinc coating of normal hot dipped galvanized steel wire only is 40-60g/m2. The less zinc coating there is, the razor wire would be getting rust earlier.