Specifications

Slat: Double skinned aluminium Slat (HA55), Width: 55mm ; Thickness: 1.0mm
Bottom Rail:  Aluminium bottom rail made of extruded aluminium
Guide Rail: Aluminium Guide Rail, made of heavy duty extruded aluminium “U” guide rail, With brush strip to make the rolling shutter run more quietly

Switch button: Switch button for operating rolling shutter, with stainless steel cover 
boxManual crank: The rolling shutter could be opened by endless chain if power off.
Motor: DOOYA tubular motor, 60N, 80N, 120N, 140N, 230N, 300N,Rated voltage / Frequency 
230V/50Hz, 120V/60Hz
Shutter box (hood) : Made of aluminium
Shaft (barrel): Made of galvanized steel octagonal tube.

Added benefits

window shutters types