阀门锻钢件超声波检测单个缺陷的等级分类_阀门标准-资讯动态-网站名称

阀门锻钢件超声波检测单个缺陷的等级分类_阀门标准

阀门锻钢件超声波检测单个缺陷的等级分类

等级	1	2	3	4
缺陷当量直径Φ	≤4	4＜Φ≤6	6＜Φ≤8	＞8

文章来源：中国泵阀网

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