Lock safety level to H level what meaning
Anti-theft door lock is divided into three kinds of lock, ultra-B-class cylinder the most secure.
In the relevant industry standards, the level of protection for the protection level is explained by the general level of security (indicated by the letter A); the high level of protection (indicated by the letter B), and on the contrary in the national mandatory standard, , B to express. As for the H-class, should be a self-defined level of Taiwan, meaning high-level. You want to see his test report to know which level.
1.A level:
The key for the flat or crescent-shaped, single or double-sided with a row of concave spoon or cross-shaped four-sided convex groove;
2.B level:
The key for the flat or crescent-shaped, single or double-sided with two rows of concave spoon or cylindrical multi-point concave spoon;
3. Super B:
The key for the flat type, single or double sided with two rows of concave plus S-shaped slot, or inside and outside the double snake-type spoon;
select:
The most secure lock cylinder has been upgraded to B-class and ultra-B-class, the best time to buy election super B-class.
