The special specification or DID roller shutter:
Slats: 43mm, 45mm, 55mm, 65mm with punched lighting hole or not;
Material: Aluminium sheet with PU insulated;
Density: 45KG/CBM
Color: White color for standard color and other colors can be availabe based on the quantity;
Operation: Manual operation or motorised (wall button or remote control);
Installation: Middle installation, outside installation, inside installation and built in type;

The advantages of DID roller shutter:
*warm keeping
*cold proofing
*theft proofing
*fire proofing
*good vision
*noise reduction
*wet proofing
*rain proofing
*pear-against
*wind&sand proofing