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In order to prevent a thief, almost every family has installed anti-theft locks, a long time will inevitably not go wrong, went wrong had to find a locksmith repair, cylinder repair can not only get a new one. A cylinder plus five key ,50-70, respectively.
How locks are bad? My family has spent four years in the lock and found not comfortable with, you need to add a little bit of oil lubrication. For the convenience plus a little salad oil. Was so fine, and later die. Finally, learn from others, edible oils should be avoided! Because the drilling dust to mix with oils, resulting in a spring inside the cylinder and stick projectile live, lock it truly'' lock'' to live.

How to do it? I wonder if you have no home washing solvent hood exhaust, just spray it, wait a minute, they diluted the old grease. For example, a kind called'' mighty'' dilution, align keyhole [two] spray and let out the logistics dirty inside, get another point of gasoline into it, it is OK! This little trick I know after completing the lock became'' belated''.