Steel crowd control barrier 

Crowd control barrier is a physical barrier used to manage and control the movement of people in public spaces or events. It is typically made of metal and consists of interconnected panels or bars that can be easily assembled and disassembled. 

Crowd control barriers are often used to create queues, block off restricted areas, or guide the flow of pedestrians in crowded places such as airports, concerts, stadiums, or construction sites. They can also be used as a safety measure to prevent unauthorized access or to maintain order during protests or demonstrations.