How long is the warranty period is - hand lock Fu yu hardware

Small make up, found that a lot of friends around home use of hand lock have some fixed number of year, some even surface off the paint is still in use. Actually hold hand locks and other products, also have a certain quality assurance period, generally hold hand lock, if you use a long time, the internal lock core can appear serious aging, very easy to get to know each other keys to open, mutual opening rate is high, the indoor security caused great hidden trouble. Fu yu hardware below small make up hold hand lock quality assurance period for everyone to do a detailed introduction.     Engineering clothbound room a lot now, this project use of hand lock basically all is by the developers unified procurement of installation, and will have the same brand, very prone to multiple door open, the lock to home planted a lot of hidden dangers. Fu yu hardware lock manufacturers, said home a hand lock general warranty period for 3 to 5 years, reached after the warranty period has to be replaced, use after long time, the internal lock core will wear serious, even with a card lock.     Then a hand lock quality assurance period is long, how do you know? Actually very simple, to see the outer packing, the quality assurance period is one of the cartons must specify parameters. If no box, it is only through direct observation of the eyes came to the conclusion that if I don't feel at ease, is also a good method of replacement in a timely manner.

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