Bi2Te2.7Se0.3
2. Chemical Formula：Bi2Te2.7Se0.3
3. Purity：99.99%，99.999%，99.9999%
4. Specification：piece，granule，powder
5. Packaging：Vacuum packing with bottle or bag.
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2. Chemical Formula：Bi2Te2.7Se0.3
3. Purity：99.99%，99.999%，99.9999%
4. Specification：piece，granule，powder
5. Packaging：Vacuum packing with bottle or bag.