Fire Door Lock Cylinder Door Latch Fittings With Key, Model: Aluminum Core Non-Interlocking+3 Keys

1. Material: copper, aluminum2. Scope of application: fire door lock3. Technology: brushed4. Large thickened lock body, easy and convenient to open and close, no rust5. Lock hole closed door design, anti-theft strong and more secure6. 6 marbles design, to prevent tinfoil unlocking, anti-picking7. Brushed technology to deal with the lock body, smooth and delicate feel, anti-corrosion, durable8. Size: 31 x 30 x 18mm9. Weight: about 80g