1.Small size ,powerful sucking force 2.Automatically alarm 3.Control with micro computer, 4.Integrated design,easily install 1. Fully automatic computer control, simple operation; 2.Automatically alarm under overload or material shortage; 3.Apply 3-phase high voltage,silent fan,compact structure ,high power; 4.Stainless steel material barrel,solid and durable; 5.With the function of automatically ...