96%-99.99% B powder
1元
99.9% B target
0.00元
99.9% BN target
99% B4C target
99.9% B2O3 powder
99.5% BN powder
99.9% B4C powder
99.9%-99.99% B pellet
99.9% CoFeB target
99.9% La B target
氮化硼 坩埚
99.9% Fe:Nb:B=63:10:27at%
500元
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