Established in 1999, FUYU door lock has gradually become one of the most famous door lock manufacturers in China because of high quality, high added value, variety and variation.

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high security internal door locks for sale for wooden door

high security internal door locks for sale for wooden door
  • high security internal door locks for sale for wooden door
  • high security internal door locks for sale for wooden door
  • high security internal door locks for sale for wooden door
  • high security internal door locks for sale for wooden door
  • high security internal door locks for sale for wooden door
  • high security internal door locks for sale for wooden door
  • high security internal door locks for sale for wooden door

high security internal door locks for sale for wooden door

The necessary tests for FUYU lock internal door locks have been strictly conducted. It has been tested in terms of safety, electromagnetic compatibility, vibration, reliability, and durability. Lisson packaging tubes are exported to Europe, Southeast Asia, America, and other regions
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     MAIN SPECIFICATIONS
  • Apply to all kinds of wooden doors and metal doors.

  • Tubular type.

  • Distinguished entrance trim designs with rich styles, finish selections and levers of 

  • configurability.

  • Heavy-duty,10 years mechanical warranty under correct installation and normal usage.

  • The 3 generation tubular mechanism with anti-saw function.

  • The 3 generation high-tech cylinder with secure keyway and construction key function.

  • Easily reversible for left and right opening doors.

  • Easy installation, instruction manual included.

                                     ASSEMBLY ILLUSTRATION

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      THE 3rd GENERATION HIGH-TECH CYLINDER

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High-tech solid brass cylinder(Brass for housing, core/plug, pins and nut).

Machined by precise CNC(Computer Numeric Control) equipments according to the  most strict QA standard. 

Keyway: Double-Row-Pin technology, 10 pins, pin-combinations are much more than international standard, extremely security. 

Construction key function available: Each cylinder with 5 pcs OWNER keys +1 pc  CONSTRUCTION key, all keys are made by solid brass, thickness 2.5mm. 

Hardened process for tail-piece, stronger and more durable.

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The design processes of FUYU lock internal door locks are of professionalism. These processes include recognition of its need or purpose, selection of a possible mechanism, analysis of forces, material selection, design of elements (sizes and stresses), and detailed drawing. Design conceptions of Lisson packaging tubes are usually available in one day
FUYU lock internal door locks is strictly assessed after production. Many factors include part tolerances, size limitations, materials properties, mechanical analysis, and function realization have been analyzed. Lisson packaging tubes can be made of such materials as PE, ABL, PBL
The design of FUYU lock internal door locks involves many considerations. They may include stress points, support points, yield points, wear resistance capacity, toughness, and friction force. Lisson packaging tubes are SGS certified
FUYU lock internal door locks has gone through some important production stages. They cover the preparation of raw materials, parts machining, plating and anodizing, assembly, and testing. Lisson packaging tubes are dust-free because of the strict cleaning procedure
Before delivery, FUYU lock internal door locks has to undergo a wide range of tests. It is strictly tested in terms of the strength of its materials, statics&dynamics performance, resistance to vibrations&fatigue, etc. Customization of Lisson packaging tubes is welcomed
Our professional quality control personnel guarantee 100% quality of our products. The quality of Lisson packaging tubes strictly meets the international standard
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