Ingrannular corrosion occurs __________ stainless steel.

1.	Ingrannular corrosion occurs __________ stainless steel.
A.	in all types of steels except
B.	at the surface of
C.	along grain boundaries of
D.	in the core of
Answer» D. in the core of

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Ingrannular corrosion occurs __________ stainless steel.

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