... produce PP,PE,ABS,PPR,PEX 2.One machinery can produce all kinds of pipe like solid ... style mix-temper screw, three sets co-extrusion mould head of special design, channel with reason, ... feeding machine, auto-constant temperature drier.Die head mould is spiral diffluence style die head, with ... each other plenty, compare with traditional bracket style mould head, this time the inner-stress distribution ...