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Marking black on aluminum by 30W MOPA fiber laser marking machine

30W MOPA fiber laser marking machine can mark color on stainless steel and titanium. MOPA fiber laser marking machine can also mark black, white, gray on other metal. For more detail http://bit.ly/laser-engravers Or contact export02stylecnc.com Or whatsapp +8613333762025 UCbHIBq0iE5u6VGiaSgFjqsw laser marking #Marking #black #aluminum #30W #MOPA #fiber #laser #marking #machine