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Manual
API
Products
Conductor, Hardness, Nb-x polyhedra
Ge-Nb
Ga-Nb-Sn
B-Nb
Al-Nb
Ge-Nb-Sn
Vickers hardness number
microhardness
Knoop hardness
conductor
transitional
metal
intermetallic
superconductor
cubic
tetragonal
hexagonal