High efficiency single screw extruding machine High efficiency single screw extruding machineFeatures:Suitable for all kinds of PE,PP PB ,ABS ... materialsSuitable for manufacturing PP-R pipes ,PP-B pipes ,alnuminum-plastic pipes,and sillicon-core pipesSuitable for manufacturingPP.PS,PET sheet ... ratio is 25:1,36:1The screw stem and the machine body are both treated with long-period gas nitrzingSuper- ...