According to the data, the word "hardware" first appeared in the Spring and Autumn Period and the Warring States period. The book "Spring and Autumn Annals of Wu and Yue Period" records that "I heard that Ou Yezi, the envoy of the King of Yue, made five swords,... a Zhanlu, the hero of hardware, and

1. Remove rust spots Whether the suction plate or the electromagnet is rusty, the first thing to do is to find a way to remove these rust spots. The common ways to remove rust spots are as follows: (1) Scrape with a knife: Use a knife or a small fruit knife that is not used at home to carefully scra

Everyone should be familiar with anti-theft door chains. The anti-theft door chain is mainly installed on the inside of the anti-theft door, and its main function is to prevent strangers from knocking on the door. If there is no cat eye installed at home, you can open the door crack to see visitors

Different properties1.Lock cylinder: The main component that controls the opening of a lock, which is the heart of the lock and refers to the core part that can rotate and drive the movement of the lock bolt in conjunction with the key.2.Lock body: One of the components of a lock, there are many typ

With the development of science and technology, intelligent products are everywhere, and the door locks used for anti-theft have also undergone a cross era change. The emergence of intelligent fingerprint locks has largely solved the drawbacks of mechanical locks, freeing people from dependence o