AJ33 double-layer small-hole aluminium alloy shutter sheet has the effective width of 33mm and small holes of 30mm*5mm at the hook, with the gap of 15mm. It, an upgraded product based on AJ37 and AJ47, increases the hole by 1.5 times, and decreases the distance between holes, more effectively in natural lighting and heat insulation of window, and can be used as a shade curtain.with the operative width not more than 3000mm.