... precision 3.good aftersale service 4.import focus lens laser engraving slitter arcylic 1390 Introduction1.Machine shell ... be 12 month . The consumables such as laser tube ,mirrors & lens are excluded. ·service: 24x7 customer support ... keywordsLaser engraving machine, laser cutting machine, laser machine, co2 laser machine, co2 laser tube, yag laser marking machine, laser, lens, mirror, cloth cutting ...