Material:Iron reatment:Galvanized Type:Barbed r Type:Cross Razor Product name:Hot Selling low price concertina BTO-22 type razor barbed Galvanized stainless steel . Specification:BTO-22,CBT-65 2.5mm Razor thickness:0.5mm Razor wm Razor length:22 mm Outster of roll:450-960 mm Application:Prison fence, protection Free sample:Available