單項選擇題普通碳素結構鋼簡稱碳素結構鋼,其含碳量為()。
A.0.02%~2.26%
B.0.02%~2.16%
C.0.02%~2.06%
D.0.04%~2.06%
A.0.02%~2.26%
B.0.02%~2.16%
C.0.02%~2.06%
D.0.04%~2.06%