Barbed Wire Specification Barbed wire fence is made of Q195 high quality low carbon steel wire, through the machine drawing into the corresponding wire diameter of wire, and then through the automatic screw machine will make barbed wire barbed wire wound on the main wire,through a variety of weaving process and the formation of protection fence. Hot-dip zinc plating barbed wire Wire Gauge (SWG) Barb Distance (cm) Barb Length (cm) 10# x 12# 7.5-15 1.5-3 12# x 12# 12# x 14# 14# x 14# 14# x 16# 16# x 16# 16# x 18#