Best Luxury Pens For Doctors

Reunion: What is the difference between a gel pen, an oil pen, and a water-based pen?

Asked by: 啾唧 What is the difference between a gel pen, an oil pen, and a water pen? I have been unclear... Reply people: group brother The water-based pen uses ink as pure water, and the paper...

How to choose a gel pen

There are many kinds of gel pens on the market, and the styles are different. How should consumers choose a gel pen that suits them? There are a few technical details to be aware of when choosing a...

Which pen and gel pen are easy to use?

Which pen and gel pen are easy to use? The pen was used a long time ago and was slowly replaced by a gel pen. However, the pen strokes written by the pen are more beautiful, but the gel pen can't...