Apply externally on existing joinery.
Rolls of 39mm slide reinforced aluminium foam import Poland.
Box and guides are made of aluminium.
Box top is sloping at 45 degrees.
Side guides are insulated brushes.
Extruded aluminium blade terminal 55 mm.
Octagonal steel shaft with 0.6 mm thickness or 0.8 mm.
Roller shutters can be fitted with automatic bolts against burglary. |
