Introduction to Custom Hollow Metal
Downloadable PDF (example pages shown)
Published by the Hollow Metal Manufacturers Association (HMMA) Division of the National Association of Architectural Metal Manufacturers (NAAMM), this manual provides information and guidance on the selection of hollow metal doors and frames, curtain walls, interior partitions, entrances and other hollow metal work.
To read and/or download this document, click Introduction to Custom Hollow Metal - PDF.
To learn more about hollow metal work and the HMMA, visit www.hollowmetal.org.
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