Meeting China’s Evolving Security Standards
China’s door lock industry has undergone significant standardization reforms since 2000, aligning with global benchmarks like ANSI and British Standards. The 9-6-NTLM Chinese Size Lock Set represents this new generation of security hardware, combining international quality with localized specifications. Its 50mm mortise lock body meets GB 21556-2008 requirements while offering compatibility with global door preparations.
Engineering Excellence: Core Components
50mm Mortise Lock Body
The hardened steel bolt mechanism provides 3-point locking, distributing force evenly across the door frame. This exceeds standard deadbolt designs by 47% in impact resistance tests (Alibaba Security Hardware Report 2024). The compact 50mm case fits Chinese door profiles while maintaining full-depth security.
70mm Chinese Cylinder
Featuring 6-pin tumblers with spool pins, this cylinder combats bumping and picking techniques. The 70mm length offers increased drill resistance compared to shorter models, with a 360° rotation capability for smooth operation in high-traffic environments.
Computer Key System
Includes 3 precision-cut keys with unique bitting codes. This system allows property managers to:
– Track key distribution through digital logs
– Restrict unauthorized duplication
– Create master/key hierarchies without hardware modification
Material Advantages: Aerospace-Grade Aluminum
The coffee-finished aluminum housing provides exceptional benefits for commercial installations:
Corrosion Resistance: Withstands coastal humidity (tested to 96hr salt spray ASTM B117)
Weight Efficiency: 40% lighter than brass alternatives
Structural Integrity: CNC-machined components maintain ±0.05mm tolerance
B2B Applications & Cost Analysis
This lock set delivers quantifiable ROI for facility managers:
| Application | Benefit | Savings |
|---|---|---|
| Apartment Complexes | Master key systems | 25% rekey costs |
| Office Buildings | Audit trail capability | 18% security budget |
| Hotel Renovations | Retrofit compatibility | 30% installation time |
Industry-Leading Value Proposition
Chinese lock manufacturers now lead global production, with companies like Mingmen Locks developing specialized silent and smart lock systems. The 9-6-NTLM leverages this manufacturing excellence, offering:
– ISO 9001 certified production
– 200,000+ cycle durability
– 3-year commercial warranty
Upgrade your property’s security with our 9-6-NTLM Lock Set – where precision engineering meets enterprise-grade security.
