| 1.Good moulding,equal sheet thincness and constant flowing speed due to the large L/D ratio of the screw in the extrusion unit. 2.Screw,die head and drum are made of high quality of alloy teel with optimum hardness,strong corrosio resistance and long operating life after niteogen treatment. 3.Advanced net-electriclly-changed device in the die head results in easy operation and hign production efficience. 4.It is a more reasoable technics toadopt three-roller structure,it improve the quality of sheet. 5.Adopt advanced frequency converter to be easy to sdjust the linear speed of onlique of oblique three rollers and drive. |
