Lock is a must-have tool for everyone, it protects people's privacy and people's peace. Nowadays, with the advancement of society, the locks are constantly being updated. More and more varieties of locks appear on the market. The hotel electronic door lock is a new type of lock that has been popular in recent years. So what are the varieties of electronic locks? Common electronic anti-theft locks include remote-controlled electronic anti-theft locks, keyboard-type electronic code locks, card-type electronic anti-theft locks, and bio-featured anti-theft locks. The range of applications for each type of electronic lock is also completely different. Today's electronic locks are also diversifying. And because of its non-reproducibility, the application of electronic locks will become more and more popular. Nowadays, many electronic locks are more and more diversified, more intelligent and user-friendly. Therefore, it will be applied to more people in more industries. First of all, dust, dirt and the like are prevented from entering the lock, so that the life of the induction door lock is greatly increased. The card of the hotel door lock no longer appears on the chip, and the service life of the card will also increase greatly. Secondly, it is simpler to operate than traditional machine locks and IC card locks. Just put the card in the position of the card reader and scan it slightly, and it is easy to open the door completely without worrying about the card reading position. Third, its card number is unique, and non-replicability is also to prevent theft. Finally, its memory is larger than other card memory, and the fingerprint code lock is more convenient for the hotel to handle, and also provides consumers with greater convenience. Feeling the unique style of door locks, it is being used in more and more occasions, such as high-class hotels, hotels, bathing centers, etc. I believe it can be used in more areas. Editor in charge: Xu Yuehua Washers are generally flat metal rings used to protect the surface of the connected parts from being scratched by the nuts, dispersing the pressure of the nuts on the connected parts. The gasket is a mechanical seal between two objects, which is usually used to prevent the impact of pressure, corrosion and pipeline natural thermal expansion and contraction leakage between two objects. The materials of rubber gaskets usually include Nitrile rubber, styrene butadiene rubber, hydrogenated Nitrile rubber, EPDM, silica gel, fluorine rubber, neoprene, perfluorocarbon, etc. Gaskets are usually made of sheet materials, such as pad paper, rubber, silicone rubber, metal, cork, felt, Neoprene, Nitrile rubber, glass fiber or plastic polymer. Shim Washer,White Astm F436m Washer,High Strength Shim Washer,F436 High Strength Shim Washer AM FASTENER , https://www.asmefastener.com