1, generally more than two pages of documents, staples are bound on the left, away from the left 1cm, generally two staples are evenly distributed on the left and right.

2. If the materials used for meeting speeches, especially those used by leaders, are generally single-sided, a staple will be bound in the upper left corner for easy reading.

3. There are some documents that are bound at the top, especially those with many forms. 1cm top binding, two staples evenly distributed around.