... films,boards,profiles.PVC,PE,PERT,PP,PPR,PC,PU... single screw plastic extruder is mainly used to make pipe, ... and PU material equipped with different type of machine and downstream.For SJ series single screw extruder, the screw diameter is from ... extruder according to your products, specification and capacity. SJ series single/mono screw plastic extruder machine/extruding machine/extrusion machine