... .No pollution & consumption 4.Long lifetime CO2 high speed Laser Marking Machine JQ-30 to make serial number/barcode ... enters laser body and reduces the equipment failure rate.Machine CharactersHigh precision and fast speed. Marking depth is ... jade, agate, etc.Applicable IndustriesTobacco, food and beverages, wines, medical packing, leather, plastic, rubber, wood products, advertisement, arts and ...