1)Cooling system individual independence 2)vacuum water,acud,oil,alkali 3)Dust collection of up to ... time, can be vacuum water, acide, oil, alkali, corrosion resistance, resistance to impact, the filtering area of 3600 square meters, dust collection ... ,and all type of cleaning industry, random attachment. Technical Specification(Vacuum Suction Machine Art no.:FL-1245CN-DT) Function Wet and ...