Duplex process of steel making is a combination of

1.	Duplex process of steel making is a combination of
A.	basic bessemer and acid open hearth processes
B.	acid bessemer and basic open hearth processes
C.	acid bessemer and acid open hearth processes
D.	basic bessemer and basic open hearth processes
Answer» C. acid bessemer and acid open hearth processes

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Duplex process of steel making is a combination of

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