1. We drew at least 10 pen lines at that time before we barely passed the test.
2. If you want to buy a red ring, I recommend buying a red ring 0.1 syringe pen. There's no need for a disposable one that draws a thick line and is more expensive than a Hero. It's convenient at best, and you don't have to fill it with ink.
Red ring 0.1 pen is more expensive, I bought 90 dollars a, other models seem to be about the same price, I have bought red ring 0.6 15 dollars.
3. Even if you don't need to draw by hand in the future, the syringe pen can be kept for pen drawing, practicing hand drawing and so on, it won't be wasted.
4. In fact, the hero's syringe pen can also draw a beautiful picture.
Additionally abet two sentences:
In fact, the purpose of this course is not only to draw a beautiful picture, but more importantly, through the practice of the line to improve the professional quality of construction workers.
Everyone knows that computers will be used instead of hand-drawn drawings in the future, but the process is essential.
The process of solving a series of problems faced during the drawing process through down-to-earth and serious practice is the most important.