concertina razor wire,razor tape wire,barbed wire mesh 1) Certified by ISO9001 2) Protecting of railway, highway, wine, prison concertina razor wire,razor tape wire,barbed wire meshbarbed wireMaterials: Galvanized ... steel, high carbon steel wire. Blade Type: BTO-12. BTO-15, BTO-22, BTO-30, BTO-60, BTO-65. Process and Features ...