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Of course, it is to choose C-level, this does not have to think about it, although now the public security department is only approved to super B-level, but there are already a lot of C-level standards on the market, ordinary gold dot atom, key ma, better have Panrong Wolverine tooth lock, CEI, Modile these brands, choose which depends on your needs, generally if you want to use a 5 to 10 years, it is recommended to choose some good brands, if it is used to rent a house, to prevent theft, ordinary brands can make do with it.
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What lock cylinder to change depends on what kind of security door.
The lock cylinder is easy to replace, first remove the old one, and buy a new one according to the old one. Then replace it and you're good to go. >>>More
Generally, the super B-grade blade lock cylinder of the gold dot atom is very good, as well as the American borough.
The anti-theft door lock cylinder level is better than the B-level anti-theft door lock cylinder. >>>More
The Invincible Tiger C-level lock cylinder is good, and the price is between 380 and 580.
The brand doors are almost the same, and their prices are ridiculously high compared to the two brands. >>>More