... high quality, cheap and convenient to buy and use CNC router for marble CR1218 This machine adopts imported linear square guide and ... humidity 30% - 75%Weight 1,200kg Application scope: Granite, marble, bluestone, sandstone, glass etc stone engraving Density stone such ... Some stone such as marble, bluestone can be engraved to 3mm at one time. Sample CNC router for marble CR1218 (Higher Quality & ...