... transmission technology and semi-closed-loop structure, engraving with high precision and fast speed. (engraving speed up to ... beam of high quality, excellent power stability, long life, low use-cost, maintenance-free, and high efficiency.4.With smarting nesting ... BMP, PLT, DXF, DST, etc.Standard collocationMini air compressor, 550W exhaust fanOptional collocationCO2 RF laser tube, Rotary attachment ...