1.pass CE ISO9000 certificate 2.high efficiency high output single screw extruder,good quality die mould calibrating sleeve ppr water ... pressure to 4MPA. HDPE/MDPE pipe extrusion line mainly includes single screw extruder, molds, vacuum calibrating water tank, spray water cooling ... control or photoelectrical switch controlTotal installed power china PPR hot/cold water supply pipe extrusion line