Draw twister
Encyclopedia
A draw twister is a machine used to draw
Drawing (manufacturing)
Drawing is a metalworking process which uses tensile forces to stretch metal. It is broken up into two types: sheet metal drawing and wire, bar, and tube drawing. The specific definition for sheet metal drawing is that it involves plastic deformation over a curved axis...

 and twist large quantities of polymer fibers. It uses two sets of rollers, where the second set rotates faster than the first, thus drawing the fiber between them. While the fibers are being drawn they are also twisted into thread.
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