... recylced plastic material,etc Krauss Maffei screw and cylinder for twin screw extruder DiameterΦ15mm-Φ350mmDesigningScrew structure and compressionratio ... h, because the parallel twin-screw and barrel costs less than conical twin-screw and barrel while it has ... foaming, high filling, wear and corrosion.Parallel twin screw and cylinder display:International Standard Packing: Exhibition experiences ...