GB/T 28908
GB/T 28908 (Metal cromo de alta pureza)· GB (China) · 6 materiales
| Designación | Grupo de materiales | |
|---|---|---|
| GCCr-1 | Cromo | chevron_right |
| GCCr-2 | Cromo | chevron_right |
| GCCr-3 | Cromo | chevron_right |
| GCCr-4 | Cromo | chevron_right |
| GHCr-1 | Cromo | chevron_right |
| GHCr-2 | Cromo | chevron_right |