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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
There are typically two screws on the self-closing mechanism, which is that tube thing on the bottom of your door. You usually turn those screws to adjust the speed. Start by trying to turn them 1/4 of the way in either direction to see how it impacts the speed of the door. There's a lot of trial and error here, so you may need to play with it a little bit.
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