2X-A series rotary vane vacuum pumps are modified pump is used for pumping the gas and vacuum sealed container of basic equipment. This series of pumps can be used alone, can also be used as a booster pump or a diffusion pump, molecular pumps and titanium pump pump before. Available for vacuum coating, vacuum heat treatment, vacuum metallurgy, vacuum tubes, light bulbs, hot water bottle, cooling, chemical, packaging, medical and laboratory vacuum job