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    BS 7412/PAS 24

    Specialist Building Products Limited
    T/A Sierra Windows
    Alders Way
    Paignton
    Yalberton Industrial Estate
    TQ4 7QE
    United Kingdom
    BSI logo

    Certificate Number: KM 33527
    Scope: Enhanced Security PVCU Windows Fabricator

    Original Registration Date Effective Date Last Revision Date Expiry Date
    1995-03-17 2024-12-10 2024-12-10 2027-09-04