gb t 3077 35crmov steel specs

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National Standard of PRC Alloy Structure Steels GB/T

The standard will replace GB/T 3077-1988 from the date of the implementation of this standard. GB/T 224-1984 Determination of depth of decarburization of steel GB/T 225-1988 Methods of Harden ability Test for Steel End Quench Method Technical specification 6.1 Steel grade and chemical composition 6.1.1 Steel grade, unified digital code

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