... 3.No pollution & consumption 4.Long lifetime CO2 high speed Laser Marking Machine JQ-30 to make serial number/barcode etc ... American RF and high-speed galvanometer,the speed is extremely fast and the precision is very high. The machine performance is steady ... glass, crystal, stone, MDF, dual-color board, organic glass, paper, jade, agate, etc.Applicable IndustriesTobacco, food and beverages, wines, ...