1.optic fiber & 10W/20W 2.Mark area 110mm*110mm 3.Max mark speed 12000mm/s 4.Mark on metal... Laser Type: Fiber Laser ... thin-lined laser beam in high quality, special for high-resolution marking.Special for high-resolution marking, and long working life with ... the figures on the opposite side. Product application It suitable for the notebook PC, mobile phone, metal products, watches, or used ...