What is the typical composition of the
castings employed in oil-fired boilers?
50%Ni and 50% Cr
90%Ni and 10% Cr
70%Ni and 30% Cr
80%Ni and 20% Cr
50%Ni and 50% Cr
50% Niand 50% Cris the typical
composition of the castings employed in oil-fired boilers.
Hence, the correct option is (A).
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