... line for Pvc large diameter 2,max diameter 500mm 3,single screw 4,model:GF500 5,capacity:250kg/h ... website 1,import inverter and ammeter 2,250kg/h high efficiency and stable3,PLC controller4, ... automatic and save labor Features and applicants:GF series plastic pipe production line ... power:27.5kw coling water capacity: 6T/H compressed air pressure:0.3-0.6mpa ...