HAFNIUM (METALLURGY)
-
BTHEAVY METALS (METALLURGY)
-
UDC669.297
-
Descriptor GERHAFNIUM (METALLURGIE)
-
Descriptor ENGHAFNIUM (METALLURGY)
-
Descriptor FREHAFNIUM (MÉTALLURGIE)
-
NTHAFNIUM ALLOYS
-
RTHAFNIUM (CHEMICAL ELEMENTS)