arlau designs and manufactures road facilities to improve the safety, convenience and order of road traffic, control vehicle entry and exit and provide safety protection, fully automatic hydraulic lifting column, remote control car blocking column, anti-collision road cone, bollard/road blocking pole, warning column/ground pile/reflective protection column, intelligent anti-collision parking lot telescopic stainless steel roadblock, suitable for entrances and exits of schools, streets, hospitals, office buildings, parking lots, etc.