Door and window locks big selection safety assuran

2022-07-22
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Check whether the use function of the product is reliable and flexible. Select more than two products for comparison inspection, especially when purchasing two-way lock products, you must use all keys to test open and close the inner and outer lock heads respectively. Also check the insurance mechanism of the product. It is recommended that each lock be tried at least three times

check whether the use function of the product is reliable and flexible. Select more than two products for comparison inspection, especially when purchasing two-way lock products, you must use all keys to test open and close the inner and outer lock heads respectively. Also check the insurance mechanism of the product. It is recommended that each lock be tried at least three times

Shifeng hardware

1. The products of enterprises with high popularity, stable quality and good after-sales service should be selected

2. First check whether the labels and marks of the purchased products are complete (including the executive standard, grade, name, address and production date of the product), whether the packages are firm, whether the contents of the instructions are consistent with the products, and be careful not to exaggerate and inconsistent with the facts

3. Observe the appearance quality of the product, including whether the lock head, lock body, lock tongue, handle and cladding components and relevant supporting parts are complete, whether the surface color of electroplated parts and painted parts is bright and uniform, and whether there are signs of rust, oxidation and damage

4. Check whether the use function of the product is reliable and flexible. Select more than two products for comparison inspection, especially when purchasing two-way lock products, you must use all keys to test open and close the inner and outer lock heads respectively. Also check the insurance mechanism of the product. It is recommended that each lock be tried at least three times

5. then check the teeth of the key. For example, for five key teeth, each key should have no less than three different key teeth. At the same time, the deepest key teeth should be avoided for the first tooth and the fifth tooth, which is conducive to the insertion and removal of the key and is not easy to break

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