... , single spline, inner hexagon, cruciate splineKneading block angle: 30/45/60/90Extruder barrel introduction:By means of the replaceable screw barrel sections, ... and VolatilizationPolystyrene oxide,high-absorbing resin,chlorine sulphur polyethylenePowder paintPolyester,ring oxide,lactide,polyurethane,acrylateCERTIFICATION:Extruder screw elements co-rotating twin screw extruder screw and barrel