Linked from
The 10 pages that link to Extrusion, each with the reason it gives.
PolypropyleneRelated: It produces polypropylene films, sheets, pipes, and fibers.
ThermoplasticRelated: Thermoplastic melt can be extruded into films, pipes, fibers, and profiles.
Synthetic fiberRelated: Spinnerets use extrusion to shape polymer streams into fine filaments.
SpaghettiRelated: Commercial spaghetti is often formed by pushing dough through a circular die.
Candy barRelated: Extrusion can shape candy mixtures into long ropes before cutting.