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