Pen factory in Iowa. Making the tips of fountain pens. Profile device (contour projector) checking the nibs of fountain pens. Pouring of molten steel from a huge kiln. Molten chain links hammered by ironworkers. Making the tubes (impact extruding) for toothpaste (no labels seen, only metal tubes). Very detailed. And surreal at the end, with many empty white toothpaste tubes rising and falling into the air on the machine.