Every shower enclosure is wrapped with all its components in a plastic film and then packed into a carton box made to measure, with the help of a forming machine, for each model. To avoid any moving and make the packing more solid, some polystyrene spacers are placed between the carton and the item; then, a foaming agent is injected, which expands to fill up the void spaces left over.
Do you to want more? Look at the video THE IRREPLACEABLE CONTRIBUTION OF MAN