GB/T 31703
GB/T 31703 (Ceramic ball bearings-Silicon nitride balls)· GB (China) · 3 materials
| Designation | Material group | |
|---|---|---|
| Class 1 | Nitrides | chevron_right |
| Class 2 | Nitrides | chevron_right |
| Class 3 | Nitrides | chevron_right |
GB/T 31703 (Ceramic ball bearings-Silicon nitride balls)· GB (China) · 3 materials
| Designation | Material group | |
|---|---|---|
| Class 1 | Nitrides | chevron_right |
| Class 2 | Nitrides | chevron_right |
| Class 3 | Nitrides | chevron_right |