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3. Corrugated tube formation
The specific elements of a corrugated tube extrusion line are the coextrusion head, which extends into a cooling mandrel, and the use of molds to form the outer layer using pressure differences between the outer and inner surfaces of this layer.
An example of a head is shown in figure 3 . The presence of several layers (at least 2) means that the head must have several distributors.
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Corrugated tube formation
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