It does not have to be a 7mmx2mm TEMU label.

1. Because the size of the TEMU label should be determined according to the specific usage scenario and requirements, different applications may require labels of different sizes. Therefore, it is not necessarily strictly limited to 7mmx2mm.

2. The size selection of the label may also be affected by factors such as production cost and label pasting position. In some specific cases, labels of other sizes may be more suitable or economical.

3. If there are corresponding specifications or standards requiring the use of 7mmx2mm TEMU labels in a specific industry or application, then they should be selected in accordance with the regulations, but this does not mean that labels of this size must be used in all cases. In summary, the TEMU label does not have to be 7mmx2mm, and its size depends on the specific situation.