GB/T 4009
GB/T 4009 (Silicio cromo)· GB (Cina) · 10 materiali
| Designazione | Gruppo di materiali | |
|---|---|---|
| FeCr30Si40-A Class I | Silicio | chevron_right |
| FeCr30Si40-A Class II | Silicio | chevron_right |
| FeCr30Si40-B Class I | Silicio | chevron_right |
| FeCr30Si40-B Class II | Silicio | chevron_right |
| FeCr30Si40-C Class I | Silicio | chevron_right |
| FeCr30Si40-C Class II | Silicio | chevron_right |
| FeCr30Si40-D Class I | Silicio | chevron_right |
| FeCr30Si40-D Class II | Silicio | chevron_right |
| FeCr32Si35 Class I | Silicio | chevron_right |
| FeCr32Si35 Class II | Silicio | chevron_right |