... .linear round gui rail & ballscrew Multifunction 4 -axis CNC Engraving Machine ZK-6060 ApplicationsWood ,Metal, Stone,acrylic ,organic glass, ... jade, emerald, jewelry engraving, 3D engraving.... Machine specifications X/Y-axis working area 600*600mmMillling ... stainless steel, steel, alloy, etc.9.Also can for wood, MDF, acrylic, organic glass, PVC, double color board, ...