Chemistry, 06.12.2021 09:50 joseaguilaroux4zh
Thép là hợp kim của sắt số với các bon và một tạp chất khác như Mn, Si, S, P.
Trong đó lượng các bon là:
a) C < 2,14% c) C = 2,14 ÷ 6,67%
b) C ≥ 2,14% d) C = 3 ÷ 4,5%
Answers: 3
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Thép là hợp kim của sắt số với các bon và một tạp chất khác như Mn, Si, S, P.
Trong đó lượng các b...
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