... area:less than300mm 3:3D effect 1218(1200*1800mm)CNC router for marble 1: This machine adopts imported linear square guide ... , high precision , long life , accurate cutting.2: The whole machine use seamless steel, better rigidity , working table backing steel plate ... . Application scope:Granite, marble, bluestone, sandstone, glass etc stone engraving Density stone such as granite can be engraved to 3mm ...