含碳量低于()称为低碳钢 A.0.1%B.0.2%C.0.25%D.0.3%
含碳量低于()称为低碳钢
A.0.1%
B.0.2%
C.0.25%
D.0.3%
相关考题:
含碳量低于0.25%的称为低碳钢; 含碳量在0.25%-0.6%之间的称为中碳钢;
A.0.1%
B.0.2%
C.0.25%
D.0.3%