Extruders which parts composed of?

Extruders which machine parts are composed of?
  Structure 1. Extrusion machine: the pay-off, hosts, control box, sink, coiling machine, take the lead machine, cable reel seven major components.
  2. Model Classification: based on a screw diameter cylinder bore or screw extruder for size, for example, the extruder screw diameter is 50mm, and the machine table is a 50-type extrusion machine.
  3. Graphic pushing mechanism into elements