... seal, stamp,rubber,gum 4.Low price Mini Laser Stamp Engraving Machine Applicable Fields: Seal engraving machines mainly used for engraving on seal / stamp ... The machine can engrave on all kinds of seal on various seal materials of plastic, organic, buffalos and cow horns ... , souvenirs, advertising images and characters. Product Features: Seal engraving machine adopts the CO2 Laser as its working ...