The questioner:

A small man of middle age with a suitcase full of very unusual tools, and in 3 minutes carefully opened the door so that it could be locked on all the locks for the night, and after a minimum repair in the morning (pick back the carefully removed plan) in general fully restored.
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Now attention, the question is! If a super-puppy-hard door can be opened quietly and without any problems in 3 minutes, WHY do you put them like that? Nevertheless, thieves will not be saved, and the owners can bring trouble. And sometimes - fatal (I am about fire, if anything).
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You won't believe, but any door can be opened in 3-5 minutes, and it's not about the door, but in the qualification of the opening. I assure you, an extra-class specialist in your apartment will not be useful, he does not need it in vain, there are more tempting goals, and from any shantrap and fairly standard metal doors of good quality perfectly protect.