barbed wire

1) Black annealed iron wire
2) Electro galvanized iron wire
3) Hot-dip galvanized iron wire

Uses: In safeguard in industry, agriculture, breeding, super highway, rallway, forest, etc 

Gauge: 12x12, 12x14, 12-1/2x14, 15-1/2x15-1/2
Barbed spacing: 3", 4", 5", 6"

A barbed wire fence is very easy to constract and can  last for several decades even with minimal main tenance work .

Currently, Barbed Wire been widely used by many countries in military field, prisons, detention houses, government buildings and other national security facilities. Recently years, barbed tape has apparently become the most popular high-class fencing wire for not only military and national security applications, but also for cottage and society fence, and other private buildings.