VELUX GGU FK06 0070 White Maintenance Free Centre-Pivot Roof Window (66 x 118 cm) VELUX Control system signals if there
Yard notes & kiln story
Description
VELUX GGU FK06 0070 White Maintenance Free Centre Pivot Roof Window (66 x 118 cm) VELUX Control system signals if there Control system signals if there is failure in the motor power supply Aerodynamically effective opening area determining the rate of smoke and heat exhaust ventilation