1.Used on construction sites, to exclude air bubbles in concrete of concrete vibrators. Pouring concrete at the time, the inevitable bubble will appear, with the vibration of the stick makes the bubbles disappear, concrete tamping, to avoid the phenomenon of cellular concrete in order to avoid future safety problems. 2.Widespread use of electric vibrator driven, simple structure, easy to carry, reducing vibration transfer to the concrete simple and direct, so pressure in the shock layer of large thickness of concrete used, such as bridges, dams and so on.