A.小于0.25%
B.0.5%~0.6%
C.0.6%~1%
D.1%~2%
[单选题]低碳钢的含碳量应为下列哪项?( )A.小于0.25%B.0.25%~0.6%C.0.6%~1%D.1%~2%
[单选题]低碳钢的含碳量应为下列哪项?()A.小于0.25%B.0.25%~0.6%C.0.6%~1%D.1%~2%
[单选题]低碳钢的含碳量应为下列哪项?()A.小于0.25%B.0.25%~0.6%C.0.6%~1%D.1%~2%
[单选题]低碳钢的含碳量应为下列哪项?()A.小于0.25%B.0.25%~0.6%C.0.6%~1%D.1%~2%
[填空题] 低碳钢含碳量为()%。中碳钢含碳量为()%。高碳钢含碳量为()%。
[单选题]低碳钢含碳量低,含碳量()的低碳钢,产生焊接裂纹的倾向小。A . ≤0.20%B . ≤0.25%C . ≤0.35%D . ≤0.40%
[单选题]低碳钢的含碳量( )。A.<0.10%B.<0.15%C.<0.25%D.<0.20%
[单选题]低碳钢的含碳量( )。A.<0.10%B.<0.15%C.<0.25%D.<0.20%
[单选题]低碳钢的含碳量()。A . <0.25%B . 0.25%~0.60%C . >0.60%D . >0.25%
[单选题]低碳钢的含碳量( )。A.<0.25%B.0.25%~0.60%C.>0.60%D.>0.25%