High Efficiency ADS CNC engraving Machine JCG1212-4(four head) ... 3.Multi Heads High Efficiency ADS CNC engraving machine JCG1212-2(Four heads) Performance Features 1 ... direction, mechanical strength and precision. 3.Using the breakpoint memory, guarantee that the machine is also ... Suitable Materials: Wood, Plastic, Aluminium, Di-Bond, Engraving Board, Fomex.Engineering plastics, marble, acrylic, perspex, ...