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    costars vendor number 008-581

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    5101 Birney Highway
    Aston, PA 19014

    About Us

    Quick Facts

    Our Team

    Customer Comments

    Associations and Affiliations

    News

    Our Projects

    Commercial

    Higher Education

    K-12

    Local Municipalities

    Contact Us

    email info@gemmsi.com

    office (610) 361-9667

    fax (610) 361-9677

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    Website designed by Spachos Athanasios with Ink & Key.