35W Green laser engraving coffee glass pot with long life The green laser, which has been elaborately manufactured for 13 years, clearly engraves the picture and text of coffee glass pots.   The 532 green laser, carefully manufactured and sold by RFH for 13 years, can clearly engrave personalized fonts and patterns on coffee glass pots. After long-term use, it can still be as new as before.There is a firm guarantee in timeliness and practicality.