2, self-adjusting ink (there are many on tb), it is recommended not to buy, there are many unstable ingredients, gold powder particles are not uniform, it is easy to block the pen! !
3. Bai Le's ink has high value, and I like its packaging very much! ! It's a perfume bottle! The disadvantage is probably that it is too expensive. . .
4. If you really want into the pit, it is recommended to buy the ink prepared by the manufacturer, which has high stability. The price is also right.
Matching pens are suggested to be transparent, such as Bai Le Guifei, SKB F 10, Sanwentang, etc.