• Copper Steel
    SECCO BV 75 Internally open and internally inverted window
    BV 75 is creating insulated cold bridge metal doors and windows with typical shapes and profiles similar to ancient wooden frames.
    1.38W/(㎡K)
    Thermal insulating property
    47dB
    Sound insulation performance
    8A
    Water tightness performance
    4
    Air tightness performance
    The data is provided according to European laboratory standards, and specific values should follow the results of national standard testing.
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  • Yanhe Doors and Windows Product Manual
    SECCO Door and Window Product Manual
    Lintan Wood Window Product Manual
National standard physical properties of doors and windows
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