51/105 55/110 65/132 80/156 92/188 38CrMoAlA Nitriding PVC Conical Twin Screw Barrel
It's necessary spare parts for PVC conical twin screw extruder machine.
Screw Barrel quality decide the final product quality and machines working time short/long.
Screw Barrel making special point:
- steel: 38CrMoAlA alloy steel
- CNC auto precise working
- Nitriding treatment for 7 days
- precise milling treatment
- barrel with air channels or brass tubes channels design