Plastic Flat Yarn Extruder line Plastic Flat Yarn Extruder LinePerformance and Characteristics:The machine using ... to produce tapes .The screw and cylinder of extruder are of 38 CrMoAIA alloy steel, the hardness ... of 20 CrMnTi Tially steel is applied to the extruder, the gears & chain wheels are made of ... applied to the driving unit.The cylinder of extruder, triton and die adopt aluminum cast heater ...