Abstract
Reporters obtained the following quote from the background information supplied by the inventors: “Afloor grinding device is an automatic device used for polishing or grinding the concrete floor and mainlyused for removing laitance on the concrete surface (after the concrete is completely dry), so as to performsubsequent floor surface construction work. Different machine tool bits are changed so as to achieve afunction of polishing or grinding the floor. The floor grinding device is widely used in the floor constructionof underground garages and industrial plants and is an indispensable device in processes of epoxy floorconstruction, curing floor construction and emery floor construction.
NETL
NSTL