... extruder 4.twin screw extruder plastic extruder SHJ Series Co-rotating Parallel Twin-screw Plastic Extruder Features 1. Screw components designed by ... unit can optimize its L/D ratio, barrel structure, screw array, venting number and location, feeding method, electrical ... kinds of master batch, rubber and plastics compounding, plastic alloys, functional master batch, Various kinds of electric cable ...