cnc machine:used for advertising materials working, like engrave, cut, drill, curve, photo engrave, letters cut etc. 3d cnc router: Application: 1. ... 2. Manufacturing industry: engrave, cut, drill, photo engraving on copper, iron and aluminum, alloy, steel etc.3. Furniture ... for models making. 6. Stamps making industry: Carving on many different materials like rubber, acrylic, cattle horn, plastic ...