barbed razor wire material:galvanized,stainless steel,pvc coated BTO-12,BTO-22,CBT-65 coil dia:450mm-980mm Used:prison,filed Concertina razor wireSYZ ... :mainly used in industry, agriculture, grass boundary, railway, highway security.Razor Blade Specification: Concertina Barbed Tape (CBT); Barbed Tape Obstacle (BTO) Barbed Tape Wire Specification: