Most cast irons have a chemical composition of()percent carbon.
Most cast irons have a chemical composition of()percent carbon.
A.0–0.008
B.0.008–2.14
C.2.5–4.0
D.2.5–6.7
正确答案:2.5–4.0
Tag:材料导论
时间:2021-12-31 13:05:09