Due to the different materials and workmanship, the locks with the same appearance sell different prices at different dealerships. At present, the price of market locks ranges from a dozen yuan to a few hundred yuan. At present, the lock cylinders of the market are divided 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. In general, multi-row marble locks are superior to single-row marble locks, and multiple-row stealth marble locks are superior to ordinary multi-row marble locks. According to Jiangnan hardware store manager, Class B lock cylinder cost is much higher than Class A cylinder, therefore, the market most of the locks brand products are introduced A-level 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. The only way for consumers to buy a lock is to compare. The locks of big brands are very fine, and the joints are tight. The work of low-end locks will look rough. It is understood that brand locks are favored by more and more businesses and consumers. Source: Internet Fountain Pump,Water Fountain Pump,Submersible Fountain Pump,Fountain Pumpfountain Pump Zhengzhou Shenlong Pump Industry CO.,Ltd , http://www.waterpump-manufacturer.com
Locks with anti-theft performance, different brand locks, the most assured
The material of the lock is generally aluminum alloy, stainless steel and copper. Among them, the strength and durability of the aluminum alloy are the worst, and the copper is the best, but the price is also high. The same is the copper lock , the workmanship and quality of each brand are also very different, it is difficult for ordinary consumers to distinguish.