Rubber self inking stamp Seal engraving machine just need to up-down the table ,make sure the material surface keep level with the red mark line (correct focus line).so convenient. high engraving precision, super model DW-3040B mini desktop laser engraving machine,for rubber stamps and other art ,craft design.wechat/whatsapp+8613783673053 Please learn more here https://dowinlaser.com/rubber-self-inking-stamp-laser-making-engraving-machine-product/ #rubberstamp #laserengravingmachine #laserengraving […]