... powder and etc. Meanwhile,Used for PVC + 30% CaCo3, recylced plastic material,etc co-rotating PVC extrusion double screw and barrrel/parallel ... output requirement.Materials38CrMoAlA (JIS SACM645)SKD61 ApplicationPVC plate, pipe, profile, pellet and mould, at the same time,it solved ... Parallel twin-screw and barrel is successfully applied in PVC plate, pipe, profile, pellet and mould, at the same time, ...