含碳量小于()的为低碳钢。 A、C≤0.15%B、C≤0.18%C、C≤0.25%.D、C≤0.28%
含碳量小于()的为低碳钢。
A、C≤0.15%
B、C≤0.18%
C、C≤0.25%.
D、C≤0.28%
相关考题:
3、低碳钢的含碳量小于0.20%。
A、C≤0.15%
B、C≤0.18%
C、C≤0.25%.
D、C≤0.28%