... mixer, cooling machine, plastic feeder,conical twin screw extruder (or single screw extruder) ,machine head,Double-wall Corrugation ... of forming machine for single wall corrugation pipe line: Forming machine noBW-I-13BW-I-36BW-I ... of forming machine for double wall corrugation pipe line: ModelStructurePipe range(mm)Capacity(Kg)Applicable raw ... single-wall,double-wall corrugation pipe production line