【Important:How To Let Paper Flat】1. Roll it up from the opposite side for 1 minute and then release it and the paper will be flat; 2. Or stick the four edges by the traceless tape; 3. Or Press the four corners with the heavy object.
【Important:How To Let Paper Flat】1. Roll it up from the opposite side for 1 minute and then release it and the paper will be flat; 2. Or stick the four edges by the traceless tape; 3. Or Press the four corners with the heavy object.