1. Outer frame adopt excellent galvanized steel, thickness is 180G/M² , to ensure no rusting in the using.
2. Thickness of other Shutters is 0.8mm; (no distortion, firm seal) While thickness of Actuating shutter is 1.5mm. (no distortion, stable operation)
3. Adopt Excellent Electric-Actuator(220V, 1.5kw, single phase), reliable quality, superior performance, large output torque.
4. Shutter fixed parts are made of high quality nylon which ensure long service life, open flexibly.
5. With reasonable designed mounting plate, which made the installation easier and convenient.
6. Customers can choose to install the excellent protection net, which can protect the buds from coming into the shutters. Shutters are made of hot-DIP zinc, never rust.