What does a ballpoint pen look like? The process of inking is observed under a microscope, and the picture is extremely comfortable.

Home >Anecdote > What does a ballpoint pen look like? The process of inking is observed under a microscope, and the picture is extremely comfortable.

2019-09-26 16:30:08 133 Views Tags:Ball pen ,  pen head ,  what kind ,  microscope
Anecdote

Anecdote

What does a ballpoint pen look like? The process of inking is observed under a microscope, and the picture is extremely comfortable.

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