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The correct sequence for descending order of machinability is _____________________?

grey cast iron, low carbon steel, wrought iron
Blow carbon steel, grey cast iron, wrought iron
Cwrought iron,low carbon steel, grey cast iron
Dwrought iron, grey cast iron, low carbon steel E. grey cast iron, wrought iron, low carbon steel

Correct Answer: A. grey cast iron, low carbon steel, wrought iron

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