After shopping in the supermarket, push away the bicycles of others, and one person can open the three cabinets in the dormitory——
As the saying goes, "one key opens a lock", but a few days ago, Ms. Wang, a provincial citizen, used a key to unlock two bicycles. The phenomenon is not uncommon. In this regard, the relevant person reminds consumers that when purchasing locks, they should choose products of regular manufacturers, and safety will be guaranteed.
On the afternoon of April 9th, Ms. Wang Lirong, who lives in Huayuan District, Provincial City, went to shopping at Darunfa Supermarket, Honglou, Huayuan Road. After checkout, she went to the parking area and opened her own blue bicycle to go home. Something is wrong. Ms. Wang took a closer look. It turned out that this was not her bicycle, but the model and color were similar to her own. Ms. Wang was surprised: "How can my key open someone else's lock? It stands to reason that someone else's key can also open my car lock. What's the point of locking it?" The reporter visited this phenomenon The car attendants of some supermarkets in the provincial city. Aunt He, who watched cars in RT-Mart, told reporters that it was not new to accidentally drive someone else's car with your own key.
Coincidentally, a few days ago, Xiao Gao, a junior student of the College of Liberal Arts of Shandong University, discovered that the key of someone else's cabinet could open the lock of his cabinet. One day, Xiao Gao hurried to open the cabinet, but couldn't find the key. A classmate joked that she tried it with her key. In a hurry, Xiao Gao inserted the key into the keyhole with a mentality to try it, and even easily opened it. Xiao Gao was both surprised and surprised: "Three people in our dormitory bought locks of the same brand. I tried again. The keys of these three locks can be opened to each other." She said: "One key can open the same brand The lock is really a master key incapable lock. "
Holding two locks that can be opened to each other, the reporter went to an unlocking company on Lishan Road and found a professional named Lin who asked why. "It stands to reason that there should be a bullet-proof hard bar in the lock slot. It is not the matching key that cannot be inserted into the lock core at all. Even if the bullet inside the lock can be pulled to the side, the lock core cannot be opened. But the lock is different. The hard bar has been saved by the manufacturer, or it may be that there are fewer bullets (springs) in the lock. "He said:" When a good quality lock is opened, the sound is crisp, the feel is good, and the two locks that can open each other are On the contrary. "Mr. Lin reminded consumers that when purchasing locks, they should choose products from regular manufacturers.
The electrification principle of Smart Film and Privacy Dimming Glass
PDLC Smart Glass Film, is a film that can change the light transparency, and its main function is to change between transparent and atomized states, also known as pdlc film, atomized film, etc.
The reason why this effect can be achieved is actually to use the voltage to adjust and control the transition between the two. When the Magic Glass Film is closed, the liquid crystal material inside will be disorderly arranged to form an opaque atomized state. When the dimming film is turned on, the liquid crystal molecular material will be arranged in a neat and orderly manner to form a transparent state.
That's, it is transparent when it is powered on and atomized when it is powered off. Of course, it can also be used on automobile glass to achieve the same effect, which is also one of the main materials for making electrified glass.
It can shield more than 90% of infrared rays and ultraviolet rays. Infrared shielding to reduce heat radiation and transmission. UV shielding protects interior items from fading and aging due to UV rays.
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