Hydraulic Bollard, also known as lifting ground column, lifting road pile, anti-collision road pile, hydraulic hydraulic Bollard, isolation pile, etc. Hydraulic Bollard is widely used in many occasions such as urban traffic, gates of the military and important state organs and their surroundings, pedestrian streets, expressway toll stations, airports, schools, banks, large clubs, parking lots, etc. Through the restrictions on passing vehicles, the traffic order and the safety of major facilities and places are effectively guaranteed.