... tuber glass 3. laser power 60w Desktop laser engraving machine Applicable materials:Wood,plexiglass,leather,rubber,clothes,paper,plastic,and ... run the laser machine and also the problems and solutionsOperating temperature0°C~45°COperating humidity5%~95% Advantages1.limit switch 2. Emergency ... pump and water pump/chiller.10. water protection switch for laser tube,if there is no water inside the laser ...