... is widely used 2XZ Series Direct-drive Rotary Vane Vacuum PumpThis series of pumps are elementary equipment for ... are also used in making electrical vacuum cases, vacuum jointing, printing, photoengraving, food packaging, vacuum forming, refrigeration equipment repair and ... 2 with small caliber, 2XZ-4 pump with vacuum drying oven, freezing dry machine and printing machine. e.Euipped with small ...