Haotian manufacturer 1.5mm,1.6mm reversed twisted barbed wire,steel barbed wire and traditional twisted babred wire.

Common Electro Galvanized Wire is also named as IWOA type barbed wire. 
it's with 2 strands, 4 points. Barbs' distance 3-6 inches (Tolerance +- 1/2") 
Uses: 
Galvanized barbed iron wire is suitable for industry, agriculture, animal Husbandry, dwelling house, plantation or fencing. 
Packing: 
In coils by bulk, carton or pallet according to customers request.

Type	Wire Gauge (SWG)		Barb Distance (cm)	Barb Length (cm)
Electric Galvanized Barbed Wire; Hot-dip zinc plating barbed wire	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#
PVC coated barbed wire; PE barbed wire	before coating	after coating	7.5-15	1.5-3
	1.0mm-3.5mm	1.4mm-4.0mm
	BWG11#-20#	BWG8#-17#
	SWG11#-20#	SWG8#-17#
	PVC PE coating thickness: 0.4mm-0.6mm; different colors or length are available at customers request.