... up to 99.8% Technical Specification(Vacuum Suction Machine Art no.:FL-1020CN-DT) Function Wet and dryCapacity 20LPower 1000WVoltage 220-240VHeight ... , can be used continuously for a ling time, can be vacuum water, acide, oil, alkali, corrosion resistance, resistance to impact, the ... office buiding,and all type of cleaning industry, random attachment Wet&dry vacuum suction machine 20L