Barbed wire, also known as caltrops, is a metal product widely used in various isolation and protection occasions. It is mainly made of high-quality low-carbon steel wire twisted and woven by a fully automated barbed wire machine. According to different weaving methods and raw material processing processes, barbed wire can be divided into many types. Types and characteristics: According to the weaving method, it can be divided into two types: single-wire twisted and double-wire twisted. The structure of single-wire twisted barbed wire is relatively simple, the price is low, and it is suitable for general protection needs; the double-wire twisted barbed wire has a stronger structure and stronger durability. According to the raw material processing process, it can be divided into electrogalvanizing, hot-dip galvanizing, plastic coating (including PVC coating) and spraying. These surface treatment processes can not only improve the service life of the barbed wire, but also meet different aesthetic needs through color changes, such as blue, green, yellow, etc. Uses: The main use of barbed wire is for isolation and protection in places such as grassland boundaries, railways, highways, military facilities, prisons, detention centers, and government agencies. Due to its beautiful appearance, economical and practical, good barrier effect, and convenient construction, it has been widely used in various occasions at home and abroad in recent years.