Light impurities in the molten metal are prevented from reaching the mould cavity by providing

Light impurities in the molten metal are prevented from reaching the m

1.	Light impurities in the molten metal are prevented from reaching the mould cavity by providing
A.	Strainer
B.	Bottom well
C.	Skim bob
D.	All of the above
Answer» D. All of the above

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Light impurities in the molten metal are prevented from reaching the mould cavity by providing

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