How to buy an ordinary 2B pencil?

2B pencil is a soft pencil, and the ink depth of 2B pencil is suitable for reading cards by computer, which is convenient for writing. When smearing a certain area, the soft pencil is easy to smear evenly, has metallic luster and is not easy to break.

First, it can be identified from the cross section. The cross section of a high-quality pencil is flat, the lead core is centered and the lead core is relatively complete. This kind of inferior pencil has uneven cross section, eccentric lead (not centered) and some lead cores have relatively large defects. A good pencil draws a smooth surface with a certain brightness, and the printed words are clear without missing words. A bad pencil has a smooth and shiny surface, and the printed words are blurred and missing. ?

Advanced pencils produced in China are generally produced with dyed red pencil boards. The surface of a good pencil is red, but after it is put aside, it is dyed more red. Inferior pencils are usually dyed red by soaking or even coloring the surface. A pencil like this (inferior) has a red surface and a completely white inside after being put aside.

At first glance, the section is flat, the refill is centered and complete;

Second, the paint surface is smooth, the printing is clear, the material is red, and the color is uniform and sufficient;

Third, look inside, the cross section of inferior pencil is uneven, the refill is not centered, the color is dim, the printing is blurred, the material is white and the color is uneven.

China Writing Tools Association issued a consumer suggestion in official website, where consumers can identify the quality of 2B pencils in three ways. The first is to look at the brand; Secondly, look at the lead core diameter, the national standard is more than 2.0 mm; Finally, look at the concentration, and the drawn effect should have a certain concentration. Besides, fake pencils are very difficult to roll, and wood grain is rather rough, while real 2B pencils roll very smoothly. You should go to a regular shopping mall or supermarket to buy 2B pencils. In addition, experts suggest that candidates should put pencils into use immediately after buying them, and check the filling quality in the mock exam.