| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF | 
		
			| YB/T 4931-2021 | English | 1569 | 
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                    (Low-magnification structure defect rating chart of continuous casting steel special-shaped billet)
                 | Valid | 
                    YB/T 4931-2021
                 |