Belgian, Flour Bag Seal, Malin Seal, Image & Found by Bart Wils.
Found in Belgium.
Blank middle two stars DE BE... MALIN.. around // 00
The OO suggests it is a flour bag seal:- "(Italian) millers grade their flour by using a ‘zero’ rating. A single zero flour is quite coarse in texture, like very powdery semolina, whereas triple zero is much finer like cornstarch. But everyday flour is usually classed as double zero, or ‘00’." From BBC 00 flour recipes. A table relating Italian grades 0, 00, 1 & 2 to other countries' catagories can be seen at the bottom of this link.