Covers For High Purity Alumina (Al2O3) Boat Crucible Rectangular, Size: Cover For 50x40x20 mm, Each Of 1

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Covers for high purity alumina (al2o3) crucibles, which have high melting point, high hardness and good chemical stability. High form alumina crucibles are widely used for chemical calcination, metal casting and ceramic sample preparation, these crucible covers can be used to avoid split of liquid chemicals or create a low oxygen environment during calcination, purity: >99%, maximum use temperature: 1600 °c