阀门锻钢件超声波检测缺陷密集区的等级分类

阀门锻钢件超声波检测缺陷密集区的等级分类_阀门标准

等级	1	2	3	4
缺陷密集区占探伤面积的百分比	0	＞0～5	＞5～10	＞10

文章来源：中国泵阀网

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