Vacuum pressure pump is a gadget or device that USES mechanical, physical, chemical substance or physical-chemical ways of pump air out of a container to obtain a vacuum.Generally speaking, vacuum pump is a device that improves, Small Vacuum Pump generates and maintains vacuum in a closed space by just various means.
Regarding to the operating basic principle of vacuum pump, vacuum pump can be divided into two types, namely gas capture pump and gas transfer pump.It 
is widely used in metallurgy, substance industry, food, electronic coating and additional industries.
