Outer frame and core made of assembled, extruded aluminium profiles or shaped steel plate
Removable core using spring system to access inner workings.
AF 701 – 702 – 703 : anodised aluminium finish, natural satin tint (available in white on request)
AF 704: anodised aluminium finish, natural satin tint or epoxy paint, RAL 9010 white
SF 704: steel finish, epoxy paint RAL 9010 white.