... spindle cooled by water 3.high precision JD3025 jade and jewelry engraver machine Performance features: 1. This ... for engraving cylinder material.Available material: Copper, aluminum, jade, acrylic, double-color plates, organic glass, PVC boards ... , architecture models, handicrafts, instrumentpanel , small industrial unit and so on.Technical parameter: ModelJD3025JD2020Working area300*250*100MM200*200* ...