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: 55KG/CBM
Color: White color is 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

Jieyang has been ISO9001 certified and obtained CE certificate and many national patents. Jieyang has established perfect sales network and all kinds of products are well received home and abroad. 
The Jieyang company is always going in for production innovation and researching & developing. Jieyang company has brought in couples of advanced Italian production lines of rolling shutter systems.
Nowadays, Jieyang has become the most important industrialization base of producing the series of rolling shutters in China.