Cylindrical lock

9. The Yapei perfect quality products transport to all over the world.

8. Only examines qualified, the quality perfect product to be able to enter the packing assembly process.

7. Pass through several working procedures, finally carries on the product complete inspection, guarantees the Yapei products quality, if has flaw, refuses leaving the factory even to be discarded.

6. 48 hour salt mist test, examines its high strength anti-corrosive, the wear resistant function.

5. Plate after polishing, to enhance binding force.

4. More than 20 multi-channel strict quality managed examination, only the perfect product can pass.

3. Through multi-channel polishing working procedures, makes the locks surface to be bright, if has any scratch and the slight defect must to be re-polished.

2. Zinc bar after lathe precision sizing, cutting, drill hole, manufacture thread.

1. The Yapei raw material uses the high quality zinc alloy material, has guaranteed the source quality stability.

Technical process:

Lock, door lock, cylindrical knob lock.
Manufactured excellent quality, nice appearance, reliable sturture, firm and durable.