Razor Barbed wire also called concertina Barbed wire it is installed without clips; it runs in natural loops on walls or fencing. As its corrosion resistance, high level of defence, welcomed by consumers in domestic and global market. Popular Size: • standard: BTO-22 • Crossed type • blade thickness: 0.5mm • wire diameter: 2.5mm • blade length: 22mm • blade width:16mm, • blade spacing: 35mm • standard covering length: 8m • surface treatment: hot dipped galvanized plate stamping