Seal-refers to 65,438+000 packaged sheetlets, namely the whole seal and the mosaic seal. There is a "knife-shaped" package around the whole seal, which is packed by the seal factory before leaving the factory. However, the patchwork seals are hand-packed. No matter how they are arranged, there will always be uneven marks, and the price of the whole seal is slightly higher than that of the patchwork.
Before leaving the factory, the whole envelope is checked three times (or many times) by the inspector through the electronic money counter (similar to the money counter) to ensure that the whole envelope of 100 pieces is error-free and defect-free. After sealing with a special sealing machine, label it and affix the inspection code stamp to leave the factory.
Patchwork means that the postal merchants sort out and count the scattered sheetlets of 100, and then pack them with manual or simple backward sealing machines, and affix labels with inspection code seals, some of which are removed from the original packaging, and some are imitations. Because the mosaic seal is manually counted and packaged, it is difficult to guarantee the quantity, and there is also the possibility of taking fakes.
Mini-panes are basically packed in 100 sheets, and the packaging procedure is basically the same as that of sheetlets. The difference between whole printing and spell printing can be seen from the appearance. Of course, you need to accumulate experience when you first enter the postal market.