How a cement mixer mixes and pours concrete. Note that the gif shows a cross-section and the black thing is a corkscrew attatched to the walls of the mixers drum. : r/educationalgifs
Toy Mixer GIF by TRANSBET Betoniarnia Limanowa - Find & Share on GIPHY
How To Make Really Good Concrete Or Mortar In A Cement Mixer -- In Three Minutes! on Make a GIF
Concrete Mixer WIP (.gif) by Tommy Chandra on Dribbble