What is the vibrating, rotating mechanism of the flat concrete
Special vibration platform for road surface or Concrete flattening rule
There are several kinds of machines that can realize what you are talking about, such as laser levelers, frame levelers, roller spout machines, concrete vibrators, and so on
That's called a grinding-machine, but different places have different names. If you're buying it for your own use. Different types of grinders are recommended for different concrete parts. Ask the seller specifically.
