... fast speed 5.auto water protection DW50YR laser marking machine have the following information:Performance ... bearings, clutch, lights,etc.,Electronic Components : Resistance, capacitance, chips, printed circuit boards, computer keyboard,etc.,Mechanical Parts : Instrument ... zipper, key holder, sanitary ware, etc., Specifications:Laser Output Power:50WStandard Marking Scrope:110 mm×110mmOptional Marking ...