... low use cost and so on. Specifications for Laser marking machine : The working life of the ... and envirommental protction requirement. Description of the product:Laser semiconductor machineLaser scanning focus lensSemiconductor module(Using 20000Hours ... ABS Materials(Appliance Housing, Commodity) Printing Ink(Tranparent Keyboard, Printing Products, Epoxy resin(Electronic parts encapsulation, insulated ...