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Ballpoint Pen Encyclopedia.com
웹A ballpoint pen uses a brass or steel rotating ball to disperse ink as you write. Witthaya Prasongsin / Getty Images. A ball point pen is a pen that uses a small rotating ball made … 웹2015년 3월 22일 · The points on most ballpoint pens are made from brass, a very strong material that is resistant to corrosion, has an aesthetically pleasing appearance, and has … tofino knits
How Ballpoint Pens are made? - How Ballpoint Pens Work?
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