A vacuum pump is a device or device that USES mechanical, physical, substance or physical-chemical strategies to pump air out of a container to get a vacuum.In most cases, vacuum pump is a 
device that improves, generates and maintains vacuum in a closed space simply by various means.
Regarding to the working basic basic principle of vacuum pump, vacuum pump can be divided into two types, namely gas catch pump and gas transfer pump.It really is Small Vacuum Pump trusted in metallurgy, chemical substance industry, food, electronic coating and other industries.
