... 1.Organic lens laser marking machine 2.for metallic and non-metallic 3.24-hour continuous operation 4.50W laser power Organic lens ... electric appliances, handsets, hardware,tools, parts, precision machinery, lens, clocks, watches, jewelries,3.Aauto parts, plastic buttons, ... and zinc), rare metals and their alloys (gold, silver and titanium)5.metallic oxides, special surface treatment (phosphorized ...