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WWYD? Barricade Button - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.
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Es-140 Fail Safe Electric Strike Lock for Glass Door - China Electric Strike Lock, Electronic Lock | Made-in-China.com
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ANSI Standard Heavy Duty Electric Door Strike Lock, Fail-Secure/Fail-Safe Adjustable, Cylindrical/mechanical Lockset, with Diode/Installation Paper (Input Voltage 12VDC) : Amazon.co.uk: DIY & Tools
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