Product introduction 1, multi-functional inflatable door seal, can provide a variety of different height and width of the carriage tail seal; 2.Efficient air blower can make the air bag get stable air pressure to ensure the sealing of the door seal and the carriage; 3, collapsible top and side air bags, in the inflatable state to form an effective seal; 4, when not in use, the balance system can make the air bag quickly exhaust, shrink to the minimum state, effectively ensure the service life of the door seal; 5, suitable for all kinds of climate, outdoor temperature -30°C to +70°C, made of foam insulation board frame; 6. Inflatable door seals are equipped with steel protective devices; 7 Blower is 380V 750W motor; 8, the air bag material is high strength PVC air tight material, thickness 0.9mm; 9, strengthen the lining plate, so that the accessories fixed more stable and lasting; 10, the laminated structure, can meet the different specifications of the carriage seal, effectively save energy; 11, control box button concise, simple operation. The panel type power switch can conveniently turn off the power supply of the control box without using the door seal; 12. The built-in counterweight ensures the natural shrinkage of the left and right side door seals; 13. The overall yellow warning strip makes parking more accurate; 14, the top can be extended down 600~1100mm, left and right side expansion about 600mm.