Daily protection of the ruler:
The ruler is an important tool for students to learn, and the most taboo of the ruler is the scratching and blurring of the engraving. Because the engraving is blurred, the ruler can’t play its role. Therefore, the ruler becomes the most care-oriented learning tool in the stationery. What should you pay attention to when using the ruler? The first thing to note is to use the ruler correctly. For example, when drawing the line, the speed should be moderate. Otherwise, the value will be calculated. . In addition, it is best not to mix the ruler with a knife or metal stationery, because sharp objects are easy to scratch the ruler. It is best to seal the ruler with a protective suit. Also, try not to soil the ruler and keep the ruler clean.


Post time: Sep-10-2019
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