W20 WINDOW INFO
The traditional heavy-duty framing system, 32mm wide with 5mm thick flanges, originally developed for commercial and industrial applications. It accommodates single and insulating glass units up to 16mm thick in the same profiles simply with a change of bead. All glazing, whether in fixed lights or casements, is in the same plane.
At Metali Window Service Ltd, we offer quality window installations at great prices.
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