Paperboard is printed and sent through equipment that Reduce, glue, and rating it to make a folding carton. Folding cartons are shipped flat and when constructed, they produce a container to shield and/or display merchandise. The 1st refrigerators were tested from the 1910s. Meanwhile, the inventor with the milk carton https://watergablepackaging.blogspot.com/2024/12/the-green-revolution-in-packaging-gable.html