(A) . 0.5 to 1% (X)
(B) 2.5 to 4.5% (
)
(C) 1 – 2% (X)
(D) 5 – 7% (X)
(E) 7-9%. (X)
Answers: The percentage of carbon in grey iron castings usually varies between 2.5 to 4.5%.
The percentage of carbon in grey iron castings usually varies between __________________?
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