Dual-force system (patent number: 201320630619.1) is specially designed for heavy duty usage. The system has been tested in accordance with the specification of EN1906 and was classified in the highest category – Grade 4 – for high frequency use, cycle tested for 200,000 times. It has also been fire tested for 120min which suitable to use in any kind of household and commercial door solution.

It was designed to fit most of the handles shown in this catalog or combination of knob handles. With the help of flat sprung and ball bearings, it gives stable and reliable performance on any different lever handles.

Also, the system was made with an effective and fast mounting system, the special base design will make no damages or scratches on your door.

With its up-to-date design and worthwhile value, it totally fulfills the demand of the modern architectural constructions.