A ball point pen (ball point pen), or a ballpoint pen, is a type of writing instrument that uses a dry thick ink, which is transferred to paper by a free-turning steel ball on the tip of the pen. The ballpoint pen has the advantages of simple structure, convenient carrying, lubrication of writing, and being suitable for being used for copying. Therefore, from the school students to the civilian staff of the office building and other people from all walks of life are willing to use.
The ballpoint pen is a pen that uses a tiny rotating ball made of brass, steel, or tungsten carbide that releases ink to the paper when it is written. Ballpoint pens differ greatly from their predecessors - reed pens, quill pens, metal pen tips and fountain pens.
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