99.5% BN powder
1元
99.9% B4C powder
99.9% Nd2O3 powder
99.8% ZrC powder
99.999% CeO2 powder
99.9% NiO powder
200元
99.9% Co3O4 powder
99.99% Co2O3 powder
99.99% Yb2O3 powder
99.99% Nb2O5 powder
99.9% Cr3C2 powder
99% B2CrH4 powder
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