| Control Factors | Level | |||||
| 1 | 2 | 3 | 4 | 5 | Units | |
| Composition (code: C) | 50 | 60 | 70 | 80 | 90 | Weight % (HDPE) |
| Speed (code: S) | 30 | 40 | 50 | 60 | 70 | mm/min |