In home decoration , the door lock is the most inconspicuous but most important piece of hardware , but few people know that the seemingly indestructible door lock actually has a shelf life. Recently, when the author visited the hardware lock market in Zhengzhou, many merchants told the author that the purchase of the door lock must choose a big brand, high quality products, and should be replaced after five or six years.
Advanced lock core is more burglarproof
China is the world's largest lock manufacturers and the annual sales volume consuming country, locks industry more than 40 billion yuan, production capacity of more than 2 billion units.
The author walked into the hardware lock area of ​​the new store in Phoenix City and saw the locks with the same appearance. Due to different materials and workmanship, the price ranged from a dozen yuan to several hundred yuan.
The author sees that the lock lock cylinders in the market are classified into A grade, B grade, super B grade and so on. “Consumers can identify the quality of the lock cylinder by the number of marbles. Generally speaking, multi-row marble locks are superior to single-row marble locks, and multi-row stealth marble locks are superior to ordinary multi-row marble locks.†Meng Fuqing, general manager of Hardware Henan, told the author that the cost of the B-class lock core is much higher than that of the A-class lock cylinder. Therefore, most of the lock brands launched in the market are A-class locks. "If the security door key has only one row of marbles, it is basically a Class A lock cylinder. If you feel that it is not safe enough, you can replace it with a B-class or Super-B lock cylinder to improve the overall anti-theft performance of the security door." Meng Fuqing said.
Material work is also very important
"In addition to the lock core, the quality of hardware accessories is also very important." Jiangnan hardware sales staff told the author that the material of the lock is generally aluminum alloy, stainless steel and copper, of which aluminum alloy has the worst strength and durability, copper Best, but the price is higher. “The same is a copper lock. The workmanship and quality of each brand are also very different. It is difficult for ordinary consumers to distinguish.†The salesperson said that the only way for consumers to buy “safe locks†is to compare them. The locks of the big brands are very fine, and the seams of the low-end locks will look rough. In addition, when the lock is turned on, the sound is mostly crisp. The low-end lock will appear loose when the key is inserted, and the sound is mostly dull when it is turned on.
Door locks must be "changed" every five years
"The average lock has a long service life, and the lock cylinder will naturally wear out. It is easy to be opened by a key with a similar tooth shape." A teacher who unlocked the key near the newspaper said that after five or six years of use, the ordinary door lock must be used. Replace the lock cylinder once.
Meng Fuqing also believes that many residential security doors and door locks are purchased and installed by real estate developers, and most of them are not particularly good quality locks. “In the same community, the same type of door lock is used in large quantities. In theory, the probability of 'locking a few doors' will increase. Many new residents in the community report that they often go wrong. Open the door and find that it is not your own home." Meng Fuqing believes that if the lock cylinder is not replaced for a long time, it will cause more serious safety hazards.
Aluminum Alloy Spinning Lighting Pole
The spinning pole is the use of foreign advanced spinning equipment,forming a whole without welding,forming a conical or profiled bar.And then polishing,remove surface oil,burr and indentation.Then after the quenching intensity,to T6 state,in line with international standards.The product never rust ,strong corrosion resistance,diversified surface treatment process,the appearance of simple fluid lines.Light weight and convenient installation and transportation,the rod body can be 100%recycling,low melting temperature.
Product features
â‘ Using spinning equipment advanced,the whole forming a non welding
â‘¡Product permanent does not rust,corrosion resistance
â‘¢Diversified surface treatment technology,make the appearance line succinct smooth
â‘£The light weight,convenient installation and transportation
⑤The rod body can be 100% recycling,melting temperature is low.
Aluminum Alloy Spinning Lighting Pole,Lightest Aluminum Alloy,Aluminum Alloy Torchlight,Lightweight Aluminum Alloy
Jiangsu chengxu Electric Group Co., Ltd , https://www.chengxulighting.com