"KNG hidden inward opening and inverting"

The whole window has no exposed system hardware parts, and good sealing performance.

The structure design of KNG hidden hinge can be opened 180°,

Give users more open space;

Active friction parts are made of 304 stainless steel,

Avoid similar products from rusting after the plating layer is worn out.

Easy and quick hardware installation,

The installation of the whole set of hardware only needs to fasten 11 screws to complete the installation, and the efficiency is increased by 30%.

Keneng’s products have undergone rigorous fatigue testing and strength testing during the design phase.

The test standard increases the safety factor by 50%.

All parts adopt the industry's leading design and production technology,

The product quality meets European standards for similar products,

The warranty period is 10 years.

Test equipment adopts industrial robot (simulating manual operation)

The product is on a window sash weighing 100kg, and the entire window is opened, inverted, and closed in a cycle.

After the number of tests reaches more than 50,000 times, it still maintains a very good working condition.

It is equivalent to 50 years of daily use. International requirements only need to pass 20,000 tests.

Standard range of applicable doors and windows:

Window sash height: 600mm-2100mm

Window sash width: 445mm-1200mm

Maximum load: 100Kg

It is suitable for European standard aluminum alloy door and window system hardware C slot size.

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