12365 LD A – B Parking Post Barrier – B

12365 LD A – B Parking Post Barrier – B – Pedestrian street crossing installed lift the roadblocks, usually a road block in the up state to limit the access, in case of emergency or special circumstances (such as fire, first aid, leading inspection, and so on) can be rapidly down the barricade, to vehicular traffic. In case of special circumstances such as road construction, traffic congestion, to put down the barricades, the traffic diversion passage.