目前,市面上的防盗锁锁芯分为A级、B级和超B级三个级别,防护级别越高,想非常规打开的难度越大。A级锁芯:一般包括传统的一字锁、十字锁、月牙锁和大部分锁芯里面只有一排弹珠结构的锁,防盗性较差,可以用锡纸工具打开,开启时间一般在几秒钟到两分钟左右。很多开发商交房时装的锁芯,都是A级的。B级锁芯:B级锁芯里多为两排弹珠,或者一排弹珠加一排叶片,钥匙上有两排弹珠槽,或者弹珠槽加蛇形曲 At present, the anti-theft lock cylinder on the market is divided into three levels of A level, B level and super B level. The higher the protection level, the more difficult it is to open unconventionally. A-class cylinder: generally include a traditional word lock, cross lock, crescent lock and most of the lock cylinder inside a row of marbles lock, anti-theft is poor, you can open with a tin foil tool, the opening time is generally a few seconds Clock to two minutes or so. A lot of developers submitted to the fashion cylinder, are A-class. Class B Cylinder: Class B cylinder is mostly two rows of marbles, or a row of marbles plus a row of blades, the key has two rows of marbles, or marbles slot plus serpentine