Small amounts of _____________ and __________ improve the quality of B – McqOptions

MCQOPTIONS

1.	Small amounts of _____________ and __________ improve the quality of Bessemer pig.
A.	Copper and sulphur
B.	Silicon and phosphorus
C.	Silicon and manganese
D.	Phosphorus and sulphur
Answer» D. Phosphorus and sulphur

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