Modern Double Cylinder Lock
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What is a double cylinder door lock? : Modern Double Cylinder Lock
Quote from Article entitled What is a double cylinder door lock?:
What is a double lock? Before getting into details of all the perks that you have to look forward to with Euro double lock cylinders, it is very important to understand what they are. More specifically, it is important to understand the specifics of this unique lock design. Technically, a double cylinder door lock is one of the two types of deadbolt locks with the other option being the single cylinder lock. It is therefore important to first understand the deadbolt lock design before delving into details about the double cylinder lock design.
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