Laser Marking for Metal Laser Marking, metal engraving with high quality laser cutting machine, modern technology Lettering on metal, laser, machine parts Laser medical device Laser, stainless steel, laser ring, barcode, laser QR Code. Laser is fired on all metals such as stainless steel, brass, bracelets. The letters are clear and legible, even 1 mm. Using laser technology to engrave. The letters and logo designs are beautiful and meticulous.