... processing industries.2), Suitable for different engraving materials.3), Can be paused timely, increased and dis-creased speed, ... , high frequency, long lifespan, prolonged working time.10), Machine body is heavy enough and stable enough to burden materials ... sheet, KT sheet, Timber ,Gemstone, Marble ,Aluminum and plastic composite panel, Iron, Copper, Aluminum, Plastics and etc.Specification: Model ...