ISO9001 barbed wire Barb Distance: 7.5-15cm Barb Length: 1.5-3cm Before coating: 1.0-3.5mm After coating: 1.4-4.0mm Barbed wire/galvanized barbed wire Wire Materials: Galvanized steel wire, PVC coated iron wire in blue, green, yellow and other colors. General Use: Barbed wire mainly serves in protecting of grass boundary, railway, highway, etc.