Blown-down film blowing machine,co-extrusion film blowing machine,film blowing machine,plastic film machine,film extruder Blown-down film blowing machine,co-extrusion film blowing machine,film blowing machine,plastic film machine,film extruder: Use ... Ratio28:1Diameter of Die-head150mmDiameter of Screw Rod65/50/50mmTotal Power≈90kwDynamic of Screw Rod18.5/7.5/7.5kwHeating Power12 ...