How to choose door and window locks? The key to choosing a door and window lock is naturally safe and durable, so owners should pay attention: 1. Should choose products with high reputation, stable quality and good after-sales service. 2. First, check whether the marks and signs of the purchased product packaging are complete (including the product's implementation standards, grades, manufacturer's name, address, and production date). Whether the packaging is firm or not, the content of the manual is consistent with the product, beware of exaggeration and The fact is inconsistent. 3. Observe the appearance quality of the product, including whether the lock head, lock body, lock tongue, handle and cover plate components and related accessories are complete, and whether the surface color of the plating parts and paint spray parts is bright and uniform and there are signs of rust and oxidation. And broken. 4. Check whether the product's use function is reliable and flexible. Choose two or more products to be checked and compared. In particular, when buying a two-way lock product, you must use all the keys to test the internal and external locks. Also check the insurance organization of the product. It is recommended to try each lock at least three times. 5. Then check the key's dentising condition. If there are five spoons, each key should have no less than three different spoons. At the same time, the first tooth and the fifth tooth should not try to select the deepest spoon tooth, which is good for the key. The plug and easy to break. Hardware to buy doors and windows three trees paint window switch paint Heavy Duty wheels,Industrial Fixed Caster,Pvc Cater Wheel,Caster Wheel BENYU CASTERS & WHEELS CO.,LTD , https://www.benyucaster.com
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