Are grinders and polishers skilled? Is it difficult to learn? How long will it take to learn to master? I want to learn!

I have been polishing paint 1 1 year this year.

Let me talk about some of my views.

1 It is not difficult for all technical societies to learn for as short as three months or as long as three years, but it is very difficult to do fine work.

If you only do technology, the salary will not be high.

I just think I can do one thing well. I work in a German company and a Japanese company respectively, and I don't have any high education, because I do this kind of fine work.

I hope it helps you.