... control system,extruder,die head,sizing and cooling system,hauling machine,planet cutting device,and turning rack.The extruder adopts enforced ... die head is the lastest designed basket type die head or spiral split type pipe extrusion compounding die head,which has ... /28PEG-710diameter:250-710SJ180/30800-1400750SJ45/28 JINGCHENG large calibre PE water and gas pipe machine