... screw for extrusion project, moreover. The small plastic profile production line in Hangzhou POLYTECH Plastic Machinery Co.,Ltd,which is adopted to ... widely, that is, this line can produce every small profile mostly ! This line equipped with selectable converse conical twin ... the best plasticization effect for PVC powder and grain,ABS,PE,PP,PMMA,PC,ASA and PA. Small plastic profile production line