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  1. aksim

    Extruding HDPE thin wall tube

    Having 20y experience in making small dia tubes of various materials using "free extrusion" technique. Recently met a challange: to make a HDPE tube 6mm OD, 5mm ID on 38mm (1.5") extruder with flex PVC screw. Though screw seems to handle the material, thin wall collapses in cold water bath. Air...

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