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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
If the wallpaper is too old and in bad shape, it's better to remove it first. The paint will probably end up working as an activator to the wallpaper, wetting it and making it come off from the walls.
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