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Pay attention to the following points when consumers choose trivial

Update:19-01-2019
Abst:

First, we should choose products with high reputation, […]

First, we should choose products with high reputation, stable quality and good after-sales service. The type, specification and performance of the selected hardware fittings should conform to the current national standards and relevant regulations, and match the selected solid wood composite doors.
Second, first check whether the packaging of the purchased product is complete (including the product's implementation standards, grades, manufacturing company name, address, production date), whether the packaging is firm, the contents of the manual are consistent with the product, and the precautions are exaggerated and factual. Does not match the phenomenon.
Third, check whether the product use function is reliable and flexible. Two or more products should be selected for comparison check. Especially when purchasing the two-way lock product, all the keys must be used to test the inner and outer locks separately. You should also check the insurance status of the product. It is recommended to try each lock at least three times.
Fourth, observe the appearance quality of the product, including the lock head, lock body, lock tongue, handle and cover plate parts and related accessories are complete, whether the surface color of the plated parts and painted parts is bright and uniform, with or without signs of rust and oxidation And damage.
Fifth, according to the use of the environment to choose the trivial, such as dry humidity, door structure, thickness, left or right open the door, open the door or open the door.
Sixth, hardware accessories should be installed last time, door and window locks, handles, etc. should be assembled after the window door fan is inserted into the frame to ensure correct position and flexible switch.
Seventh, the mutual opening rate is the ratio of the lock and the key. The less the lock is opened by a key, the stronger the safety and reliability of the lock. Consumers should try to pick a lock with a large number of key teeth when purchasing, because the more the number of teeth of the key, the greater the difference, the lower the mutual opening rate of the lock.

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