Used laser engraving in German?

"A laser engraving system is used for many things. You can engrave rings. Other personal items which can be engraved including but not limited to belt buckles, cuff links, and earrings."

Laser engraving is available for a wide variety of materials. Plastics, metals, stone, glass and other natural materials will accept a laser engraving flawlessly.

If you mean, e.g. "I used to do that when I was a kid," then you can say either "Ich habe das frueher als Kind getan" (where the perfect tense and the adverb "fruher" convey the sense of "used to"),...

the plural of laser is lasers. for exampleI have many lasers.you don't sayI have many laser.

To remove the positive charge from the printing roll, allowing the ink to stick there and from there transfer onto the paper.