... 3:24 hours continue work Laser Marking /Engraving machine for Automobile Components are detailed as follow:Applicate:1; ... and clocks, jewelry, auto parts, plastic buttons, construction material, PVC pipe, medical equipment, etc. .3; application ... surface treatment (phosphate, aluminum anodizing, plating surface), ABS material (electrical appliances, housing, commodities), ink (translucent button, ...