Doors, technology from 250 to 860 for your urgent need for quiet and no disturbance. 1200 We have innovated and designed the best sound-insulating door models for sound doors. Doors, doors, standard door sizes are available. Standard door size is 2m x 1m. This is a standard door and its price starts from 650 to 1200. And there are steel works, plain and more than one model, from model 2018 to model 2020, and a model up to 2025, the newest model 2026. Contact WhatsApp to send all new models. Sound for sound. WhatsApp. Of course, doors are calculated per door, and walls are calculated per square meter. Doors are soundproof, sound mufflers. The standard of calculation is per piece, wood or iron. The insulation reaches up to 90%. Dust, sounds, smells. We care about quality and appearance, and we have a wonderful range of colors to suit refined tastes. Doors, door for the door. Order the catalog now to get our latest products, designs, and additional valuable information about insulating all types of doors.