If I need to leave the marks on a white magnetic board for a long time, is that safe for the board quality, or is there a time limit for how long marks should stay on the board?
Md Ariful Islam
বিএসসি(সিএসই)
,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
There isn't a set time, but it can leave marks. You can always clean it up using this method or just use sticky notes.
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