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Anonymous users2024-01-24There are so many of them now, and it's important to fit yourself. You can choose to consider the threshold that is acceptable to the general public. Communicative.
Hello, it doesn't take much, it should be about 120. It's not difficult to install an security door.
It depends on what kind of lock it is, and a good fingerprint password lock costs thousands of dollars. There are generally hundreds of pieces. We have locks for sale, and the factory price is directly sold. But it is not convenient to install in the past, you can teach.
Open a store in Building Materials City? How much investment depends on how you want to operate, some customers go out to run the business by themselves, find a place to put a few samples, go out to take orders and come back to do, the model will generally give back money, which is equivalent to empty gloves white wolf, haha.
Look where you are, if you are in Beijing, you can do our spring security door.
The price of ordinary anti-theft door lock cylinder is about 100-300 yuan, the price of anti-theft door lock cylinder, which should be determined according to the quality of the lock cylinder, the price of replacing the D-level anti-theft door lock cylinder used by the general family is relatively cheap, generally about 90 120 yuan, especially good ones are more than 200 yuan, of course, the price of some brand lock cylinders will be more expensive, it is generally recommended to change the lock cylinder one level higher than the original lock cylinder, in order to better play a protective role. >>>More