... motor: Schneider inverter with Permanent Torque1.5 Reducer: with movers hard tooth surface for extruder special gear box , double reduction, external ... material of the die-head: 40Cr, finishing polish with plate hard Cr and polish again;2.3 The diameter of the ... roll :1300mm,the surface of the initiative steel roller plate hard chrome and machining polish, the open and close of the Paul ...