Barbed wire 1.Type:BTO-10,12,15,18,22,30;CBT-60,65 2.Coil Diameter:450,500, ... .of loops:33,56 4.OEM concertina razor barbed wire:1.Material: High Carbon Steel, Stainless Steel Wire, Hot Dip Gal ... and society fence, and other private buildings. Razor Blade Specification:(1) Straight Type Razor Wire(2) Concertina Single Razor Wire(3 ...