... .For metal and nonmetal materials marking Description:BDT50 Semiconductor laser marking machine adopts diode pump module with the ... lower powder dissipation,higher precision and stable laser output.BDT50 laser marking machines with the resonant cavity works ... metal,gift accessories,lable,PVC tube,etc.Technical Parameters Laser Power50WMin. Character0.3mmMin. Line Width0.015mmQ -Fequency1-50HKZMarking ...