Through research a new multifunctional double screw arbor extruder was invented. It could be used as both one-way double screw arbor extruder and two-way double screw arbor extruder.

• 本文研究开发了一种多功能新型双螺杆挤出机，其特点是既可以作为同向双螺杆挤出机使用，又可作为异向双螺杆挤出机使用。