DIFF Subgroup
C22C 111/02 Refractory metal fibres or filaments, e.g. tungsten fibres
Introduced: January 2000
Full Title
Metallic fibres or filaments > Refractory metal fibres or filaments, e.g. tungsten fibres
C22C 111/02 Introduced: January 2000
Metallic fibres or filaments > Refractory metal fibres or filaments, e.g. tungsten fibres