... also having a good hem.It features novel structure,good vibration absorption effect,stable running,safe,reliable,low noise,simple operation ... low power consumption and easy maintenance.Our advantage:1.canbe coupled to electric motors,,gasoline engines,diesel engines,flexible shaft pumps 2 ... type concrete vibrator YFM-SERIES,we have 3 months warranty.1. within 3 months,if there is some accesorry going ...