... adopts imported linear square guide and 4 kines double slider. Large loading capacity, run stably , high precision , long life , accurate ... cooling system for tools improves its life. Application scope:Granite, marble, bluestone, sandstone, glass etc stone engraving Density stone such as ... can be engraved to 3mm repeatedly Some stone such as marble, bluestone can be engraved to 3mm at one time. ...