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project | Si% | Ca% | Fe% | fineness |
Content of silicon powder | ≥98 | 0.30 | 0.60 | 200 mesh |
≥97 | 0.35 | 0.70 | 200 mesh | |
≥95 | 0.50 | 0.75 | 200 mesh | |
≥90 | 0.50 | 0.75 | 200 mesh |
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