... design for heavy material 3 cheap price, CE YN-1313 multi-head cnc router is designed by YuanNuo with high efficiency for ... to engrave on stone, wood, plastic,glass etc.Features:a. multi-heads could be added or reduced as your requirement, improve ... carving (vacuum table, dust collecting system, air pump etc.2. Automatic oil lubricating system3. Configure more spindles according to customer requirement4 ...