EMG & YEMAG aluminium shutter doors, with double-layer substrate rolled structure (filled with high-density non-fluorinated polyurethane foam with a density of up to 65Kg/m3), the inner high-density polyurethane foam has excellent thermal insulation in summer and heat preservation in winter. Driven by the motor, the aluminium roller shutter runs smoothly and firmly. The motor is hidden inside the running mechanism, which is very concealed and the structure occupies very little space. Our aluminium shutter doors are beautiful and high-grade which is the first choice of garage doors for high-grade buildings in Europe and America.