... .Usage:wide applications 4.High-quality machine 5.Single screw and double screw Single-screw extruder fits for thermoplastic film, plate, sheet ... \TypeSJ-30BSJ-45BSJ-65BSJ-90BSJ-120BSJ-150BLength to Diameter Ratio (l/d)30,3325,30,3325,30,3325,30,33,3525 ...