Now its meaning has been expanded to describe the construction institutions that manage pedestrian traffic, protect key basic buildings, set boundaries and distinguish roads. It is said that street fences began in the 28th century, shaped like inverted cannons, used as border setting and city signs.
Since then, more and more of them have been found in our daily life, such as supermarkets, restaurants, hotels, shops and sports fields.
These elegant Ulanchab lifts beautify the environment, distinguish between sidewalks and roadways, and sometimes even serve as chairs to allow us to sit down and use lunch. Fixed metal guards are pervasive. They are usually about 45 tall painted steel columns, which are filled with cement and installed on the ground.
Many guard pillars have aesthetic functions. Metal guard pillars are used to prevent vehicle damage to pedestrians and equipment. They can be used as a simple way to control entry and exit. They can also be used as guardrails to delineate specific areas. They can be fixed on the ground individually, or they can form a line to close the road, so that no vehicles can enter, thus ensuring safety.
The metal fence fixed on the ground serves as a long-term fence, while the retractable and movable fence ensures the entry of certified crowd vehicles.
When it comes to security applications, different lifting columns are used to block different objects. For example, the pillars used to stop traffic are different from the pillars used to deal with protection problems.
When it comes to safety applications, the size of the vehicle and the speed of the vehicle in the event of impact should be taken into account first. The style of "Ulan Chabu Fully Automatic Lifting Column" has been applied for many years, and now the pillars have been expanded into different styles.