... wire. Material: iron wire,stainless steel. wire and blade make up. BTO 28, 30, CBT60, 65. Razor barbed wire, also concertina wire, concertina razor barbed wire ... , razor blade wire etc.Barb type: BTO10, 12, 18, 22 ... information, please feel free to contact me: Emily, 0086--13722444928. galvanized razor barbed wire