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Chalcogen, Conductor, Transitional, Kar, Nb-O-Tl-W
S1804869
P1520702-4
P1520702-5
P1520703-4
P1520703-3
P1520702-11
P1520702-8
P1520703-2
P1520703-1
P1520702-3
P1520703-7
P1520703-6
P1520702-9
P1520702-7
P1520702-1
P1520702-6
P1520702-10
P1520703-8
P1520702-2
P1520703-5