The most taboo of the ruler is the scratching and blurring of the engraved value. Therefore, the ruler has become the most cared item in the stationery. What should we pay attention to when using the ruler?
1. First of all, the method of using the ruler must be correct. For example, it is best not to use a plastic ruler when demarcating materials, as it will be easily scratched. There are also many people who make a mistake. They are very fast when drawing a line, and then they will follow the ruler because of the slippery characteristics of the ruler. This will make the value sloppy, so the speed is moderate.
2. The ruler is best not to be mixed with a knife or metal stationery, and the pen cover must be put on when it is mixed with a pen.