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प्रश्न
What is the role of logs of green wood in poling process?
अति संक्षिप्त उत्तर
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उत्तर
The hydrocarbon gases released by the green wood logs lower the oxide impurities. The impurities either form a scum on the surface of the molten metal that is skimmed off, leaving behind pure metal, or they escape as gases.
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