The book machine lifts the upper cover to put nails. First, open the PUSH button at the back, press the top spring to the back, then put nails, then slowly loosen the spring and close the cover to use. ?
Deli Stapler No.399, with the figure as follows:
Supplementary information:
Stapler is a kind of office supplies. There are three kinds of nails with different styles and sizes. The large, medium and small ones are not standard, the large and medium ones are standard, and the medium ones are generally less than 3. Staplers became more and more popular in the 192s. At that time, U-shaped nails could be glued into a long strip and put on the market.
The traditional method of binding books is to sew the pages together according to the "labeling". This is a rather complicated process, which is simple for skilled bookbinding workers, but it may be difficult to do it by a machine. Therefore, bookbinding workers who want to improve their working speed, especially when producing brochures and magazines that usually require fast speed, are trying to find a way to bind with small pieces of bent wire.