Decorative Door Knocker Animal Head Vintage Door Retro Lion

A door lock is, as the name suggests, a device used to lock a door to prevent others from opening the door. There are many classifications of door locks, and the requirements for door locks are different in various occasions. Ordinary families generally use anti-theft door locks, which are high in safety and relatively cheap. Door locks are widely used and can be seen every day, but there are many levels of anti-theft door locks, that is, anti-theft levels. The following is a comparison table of anti-theft door lock anti-theft technical indicators. According to this comparison table, we can understand the safety performance of our own door-level locks. Electronic door locks have emerged with the development of electronic technology. They are incomparable to mechanical locks in terms of ease of use, anti-illegal opening, and intelligent management. Therefore, they are widely used in industries with high security requirements. The common ones on the market are mainly magnetic cards, IC cards, TM cards, and radio frequency card electronic door locks. Among the many brands and varieties of electronic door locks, how to choose? In the purchase of electronic door locks, the following principles should be grasped. Different from commercial hardware standards, civil hardware accessories are prone to many faults here and there after being used for a long time. Especially door locks, such high-load components, have a long service life, and it is inevitable that there will be a little failure. It is often found that some users and friends, the damage of the door lock at home is often caused by improper use or maintenance. Hardware: Traditional hardware products, also known as "small hardware". Refers to the five metals of gold, silver, copper, iron and tin. After manual processing, it can be made into art or metal devices such as knives and . Hardware in modern society is more extensive, such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Most hardware products are not final consumer goods.

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