... double-color sheet, ceramic tile, rubber, plastic, marble, bowlder, crystal, leather and cloth. Etc. Nonferrous materials. Good Features:1.64-bit ... high speed DSP for control system of the GS laser engraving machine. The processing Capability and stability is highly improved.2. ... It supports the USB interface, with the GS series laser engraving machine, it's not necessary to connect to the computer, ...