Material applied for razor type barbed wire and barbed tape wire: Galvanized razor wire or stainless steel razor coils. Razor wire can be installed in the form of barbed tape wire or concertina coil to walls or fencings. Razor size and coil size are listed as follows Outside Diameter No. of Loops Standard Length per Coil Type Notes 450mm 33 8M CBT-65 Single coil 500mm 41 10M CBT-65 Single coil 700mm 41 10M CBT-65 Single coil 960mm 53 13M CBT-65 Single coil 500mm 102 16M BTO-10.15.22 Cross type 600mm 86 14M BTO-10.15.22 Cross type 700mm 72 12M BTO-10.15.22 Cross type 800mm 64 10M BTO-10.15.22 Cross type 960mm 52 9M BTO-10.15.22 Cross type