the production line consists of conicity double-screw extruder, granulation die head, plastic grain cutting machine. the production line consists of conicity double-screw extruder, granulation die head, plastic grain cutting machine, stainless steel air cooling device. and discharging board of die head adopts 38GrMOALA high quality alloy steel with nitemper. the die body, adopting #45 forging for ...