纸（A4纸等）
对折后的A4纸：一张A4纸对折之后是4页，对折50张就是200页，正好相当于一本普通书的厚度。为了便于打孔器打孔，通常是将50张的A4纸分成5份，每份10张、40页。
打孔器和线
（强度区别于普通的针线）
使用打孔器，沿着A4纸折线对纸张进行压孔。仅需要三个装订孔就行了。压完纸张的头两孔后，接着就是将打孔器移动、对齐纸张的中间孔位，接着压出第三个孔。
每次、每份压孔之后，又可以格外将之前已经压好的份数，加在一起，再压一次。即增大孔的大小，方便线进行穿引。
穿线工具（筷子等）
用线装订：用线的方法，网上有很多。具体操作，还是得靠自己去实践。这里，大致提2个用线需要注意的问题（相对、灵活）。
长度：复线通常是2.5米——3米。若是对折两次，四根单线：总长度就是10米——12米。穿孔次数：各孔位间，来回3次。
就是这些了。
Paper (A4 paper, etc.)
Folded A4 paper: A folded A4 paper is 4 pages, 50 folded sheets are 200 pages, which is equivalent to the thickness of a normal book. In order to facilitate punching holes with a hole puncher, 50 sheets of A4 paper are usually divided into 5 parts, each with 10 sheets and 40 pages.
Hole puncher and thread
(strength difference from ordinary needle and thread)
Use a hole puncher to punch holes along the fold line of the A4 paper. Only three binding holes are needed. After punching the first two holes of the paper, move the hole puncher and align it with the middle hole position of the paper, and then punch out the third hole.
After punching each part, you can also add the parts that have been punched before and punch them again. That is to enlarge the size of the hole, making it easier for the thread to pass through.
Threading tool (chopsticks, etc.)
Binding with thread: There are many methods of using thread on the internet. For specific operations, you still have to rely on your own practice. Here, I will briefly mention 2 issues that need to be paid attention to when using thread (relatively flexible).
Length: The double thread is usually 2.5 meters – 3 meters. If folded twice, four single threads: The total length is 10 meters – 12 meters. Number of holes: Between each hole position, go back and forth 3 times.
That’s all.
