... internal spiral hush pipe machine set, PE (PVC) single(double) wall corrugated tube/ribbed tube machine set, ... line, plastic extruding bottle-blowing machine set, SJL2 series plastic pelletizer set, PP plastic packing tape machine set ... pipe series, series conical twin-screw extruder, series plastic hot melting/cooling mixer, series machine head/die assembly, series breaker, series single-screw ...