galvanized barbed wire 2points or 4 points Barb length:10-30mm Barb spacing:75-150mm ISO 9001 galvanized barbed wire (manufacture)material: steel wire ,iron wire, ect.wire diameter: 3#-40#surface ... coil: 30-75kg//coillength per roll: 100m, 20m, 10m ,ect2 strands,4 points.application: as protective fence in industry, agriculture, highway,railway,glass ...