VELUX GPU MK10 0067 High Energy Efficiency Glazing Maintenance Free Top-Hung Roof Window (78 x 160 cm) RFL Low ambient temperature testing to
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Description
VELUX GPU MK10 0067 High Energy Efficiency Glazing Maintenance Free Top Hung Roof Window (78 x 160 cm) RFL Low ambient temperature testing to Low ambient temperature testing to determine the reliability of the system at low winter temperatures With a fibre free rigid thermoset phenolic core and a low emissivity foil outer face