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纰� C 锛�1.45锝�1.70

纭� Si锛氣墹0.40

閷� Mn锛氣墹0.40

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纾� P 锛氣墹0.030

閴� Cr锛�11.00锝�12.50

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閴� Mo锛�0.40锝�0.60

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