Why does the hollow aluminium rolling shutter door fall off for a long time?The series of HO profiles is heated by Doyle\'s Aluminum Alloy bar by extrusion forming production, use the 6063 Aluminum Alloy material, has excellent plasticity, corrosion resistance, toughness, easy polishing, film.Aluminum Alloy thermal cooling fast, excellent seismic performance, the design of hollow base not only greatly reduce the heat conduction, but also effectively reduces the acoustic resonance effect, suitable for hot summer and warm winter area and some noise pollution area.The series of HO profiles is heated by Doyle\'s Aluminum Alloy bar by extrusion forming production, use the 6063 Aluminum Alloy material, has excellent plasticity, corrosion resistance, toughness, easy polishing, film. Aluminum Alloy thermal cooling fast, excellent seismic performance, the design of hollow base not only greatly reduce the heat conduction, but also effectively reduces the acoustic resonance effect, suitable for hot summer and warm winter area and some noise pollution area.Other related question