... 0.1mm 3.Competitive price Separable Laser engraving machine for stone with CE/FDAProduct Features♦This series adopts imported sealed-tube ... a superior power stability which the common machine cannot compare with.♦It has characteristic of high performance, excellent beam mode ... beverage, medicine, cosmetic and other industries.♣It can be used for engraving on materials such as paper, PVC, rubber, wood, ...