1.cnc engraver 2engraving for marble,granmtie,sandtone,inkstone,tombstone,steles 3.water-proof, 4. ... , low noise, complete with carving tools, and embossed carving features.machine double water circulation system, better protection tool.PC control system ... , metal, wood, acrylic, aluminum composite panel and other hard surface for processing cutting, relief and other functions. You need it ?