Automatic Drop Down Recessed Door Bottom Seal Fire Sound Dust Wind Proof

SKU: 753569562426


Designed for soundproof and fire resistant doors and for wooden doors.
Assembly  inside of the door panel
Its avoid to pass cold and hot air and Its provides isolation 
Product is prevent to wind, dust and sound
Due to mechanism door is opening and automatically closing
Easily adjustable without tools , piston etc..
Press Highness 20 mm
Shortening size 100 mm
Mechanism working from 2 different point so its shows stable and lasting performance
Its close the gap from 0 to 20 mm in the bottom 
Pressure adjustment applicable to mechanism
It fills the cavities with the spring mechanism and its press from the double point and covers the ground defects
Its block to light infiltrate
Reduces the energy consumption because of the gap in the bottom is closed with this product
Block the insect passing
When the door is opened, there is no mechanism accessory on the floor.It make easy to pass disabled people
Hidden application model prevents image dirtiness


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