... haulm motor, strong suction, make the absorb dust arrive the high-pointUse high technology auto circuit ... guarantee the quality, reasonable price.The absorb dust tube, resist abrade ,resist draw-extend, resist cankerY ... adhibit tray firmlyTechnical Specifications:Voltage220V/50HzElectrical engineering power2300WAbsorb dust power4.3m3/minOperation pressure6barSuction Piece Inner Diameter8mmDust ...