Chinese GA/T 73 Class C (Super B): 270-Minute Technical Anti-Pick Standards
Engineering Overview: Technical breakdown of Chinese Ministry of Public Security GA/T 73 Class C (Super B) lock cylinder standards, testing anti-drilling and anti-picking.
Technical & Engineering Specifications
| Standard | Chinese National Standard GA/T 73-2015 |
|---|---|
| Anti-Pick Time | >= 10 Minutes (Industry Benchmark > 270 min) |
| Security Grade | Class C (Super Class B / 最高防盗级别) |
| Anti-Drill Time | >= 30 Minutes Continuous Destruction |
| Diff Combinations | > 16,000,000 Theoretical Differs |
Chinese National Security Standards
In China and Asian export markets, lock security is certified under GA/T 73 (Mechanical Anti-Theft Locks), which classifies cylinders into Class A, Class B, and Class C (Super Class B / 超B级).
Class C Highest Security Benchmarks
- Technical Pick Resistance: Withstands $>10 ext{ minutes}$ (often $>270 ext{ minutes}$ in manufacturer tests) of professional picking.
- Drilling Resistance: Withstands $>30 ext{ minutes}$ of destructive power drilling.
- Key Combinations: Minimum 16,000,000 diff permutations via multi-row dimple and serpentine track pins.
Frequently Asked Engineering & Selection Questions
Q1: What standard or test protocol is defined here?
Technical breakdown of Chinese Ministry of Public Security GA/T 73 Class C (Super B) lock cylinder standards, testing anti-drilling and anti-picking.