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For the C-level, the Guotai Min'an of Ju'an Home is the best.
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Change to the C-level one, the anti-theft performance is the best.
Super B-level locks are best, then B-level locks, and finally A-level locks.
I changed it to 70 pieces of Yuema before.
Directly in the building materials market to find the anti-theft door sellers on it, the rest of the things to let the anti-theft door manufacturers do well, the brand uses Longjia, Panpan, Xinduo and so on are good.
Change the lock cylinder on an ordinary security door according to different regions, the price should be between 40-180, and there are nearly 10 types of cross lock cylinders. Large cities should be between 80-180. ** >>>More
Security doorHow much does it cost to change the lock cylinder? When your security door. >>>More