|
The process in which the red hot cast iron is cooled immediately in cold water is known as |
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|
(a) |
tempering |
(b) |
quenching |
(c) |
annealing |
(d) |
bleaching |
|
The process in which the red hot cast iron is cooled immediately in cold water is known as |
|||||||
|
(a) |
tempering |
(b) |
quenching |
(c) |
annealing |
(d) |
bleaching |