钢中非金属夹杂物是由()等组成。 A.氧化物、硫化物 B.氧化物、磷化物 C.碳化物

题型:单项选择题

问题:

钢中非金属夹杂物是由()等组成。

A.氧化物、硫化物

B.氧化物、磷化物

C.碳化物、硫化物

考点:轧钢工考试轧钢工高级技师轧钢工高级技师题库
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