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Mano
Lv 7
Mano asked in Science & MathematicsEngineering · 1 decade ago

How the Ball is rolling in the nib of Ball point refill. Construction and working details please.?

How does it also carries equal quantity at all levels of its usage. What this mechanism is called? Can a find any website to get an illustration of its working. How writable ink is filled into the capillary of refills.

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