For PVC pipe manufacturing, a twin screw extruder is generally the better choice, especially when processing PVC powder or dry-blend formulations. A twin screw extruder provides efficient mixing, melting, conveying, and homogenization of PVC material along with stabilizers, fillers, and other additives. This helps maintain consistent material quality and supports stable PVC pipe production. https://uniqueextrusion.com/twin-screw-vs-single-screw-extruder/