good performance, long working life Extruder: Single-screw extruder adopts new style high-efficiency screw which provides good ... speed, output and plasticization.Extrusion mould: adopts newly-designed multi-layer co-extrusion die-head, and spiral flow-channel, which features ... The pictures shows the HDPE six-layer co-extrusion pipe machine, the Min. thickness of single layer is around 0.12mm, it ...