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.Ballpoint pen ink of low viscosity (Low Viscosity) wrote a slippery better flow. Continuous unbroken. Write clean. The last drop ink, no pungent odor is not harmful to health, free from heavy metal and aromatic compoundsA casing can be written, 1800 meters extrusion author 1 500 meters, according to the industry standard standard346-2527 both ink, black, red, blue, and pen exchange horses has been the standard green label. The head pen made from Tungsten Carbide. Which is equivalent to the diamond strength, durable as long shaft made of polypropylene, and Plystyrene.
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