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Gel pen gel ink refill grease at the end of what?

Jan 20, 2017

Gel pen refill grease at the end of neutral lithium ester oil, its role is as follows:

To maintain good moisture sealed to prevent overflow ink evaporates or turn the clock back.

Gel ink pen writing, lithium acetate could follow at any time like a piston, ink using atmospheric pressure press down, neutral pen writes smoothly, until the ink out.