When my friend came to our house and saw that my machine was not working well, he recommended this laser engraving to me. He said that his machine had been installed. It felt really good. I didn’t believe it myself, but when I saw my friend’s confident look, I chose to try it. Just as we did. Nothing happened and I went out shopping with my friends. It happened that I found this laser engraving in a shop on the way. I bought it immediately then. Now I’m really satisfied with it after using it. I have to say that my friend’s vision is either that good or not. I don’t think he knows how good laser engraving is.