Barbed wire: barbed wire by a fully automated machine twist and weaving. Tribulus terrestris commonly known as non-iron. 
 Material: high quality low carbon steel wire (galvanized, hot galvanized, plastic coated, spray) silk, blue, green, yellow and other colors. 
 Specifications: single wire and double wire twist twist compilation series. 
 Uses: used for grass boundary, railway, highway isolation protection and so on.