China National Standards

China Metellographic GB Standards List

  •  China "Metellographic" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 13320-2007 Metellographic grading atlas and assessing method for steel die forgings
    钢质模锻件 金相组织评级图及评定方法    		 China National Standards
    Metellographic
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