Commercial Doors Detroit | Door Hardware Michigan | Security ...
E. Fire resistance ratings for exterior doors, windows and other opening protectives shall .... All doors and frames shall be 16-gauge A60 hot-dip zinc-iron alloy coated steel unless ... Clearly identify on the Door Hardware Schedule, all doors requiring security switch ..... LHR door - Flush sliding head and foot bolts, w / closer.
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metrodoorandhardware's website is metrodoorandhardware.net