Knife Material: Tungsten Carbide（YG15）（YG11）（YG20）
Silicon steel thickness range: 0.2mm/0.23mm/0.27mm/0.35mm/0.5mm
Harndess: HRA 90-92
| Knife Precision Tolerance | |||||
| OD | ID | T | Parallelism | Flatness | T |
| Ø100–Ø200mm | Ø30–Ø120mm | ≤5mm | ≤0.003mm | ≤0.002mm | ±0.002mm |
| Ø220–Ø360mm | Ø160–Ø280mm | ≥10mm | ≤0.002mm | ≤0.002mm | ±0.001mm |
