The technological innovation of the extruder(2)Right now we have been producing various sizes of parallel twin screw barrels, such as 40KK,¢45, CM58, 67/22, 68/25,CM80,114/32, 92/28, 92/32, 114/32, 90/16, 90/22, 75/32, 81/17,¢250 and many other diameters.(China extruder parts)