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阀门受压铸钢件射线照相检测 射线照相灵敏度级别_阀门标准
阀门受压铸钢件射线照相检测 射线照相灵敏度级别
|
透照厚度 mm |
级 别 | ||
| A | AB | B | |
| 灵敏度（%） | |||
| ≤50 | ≤2.0 | ≤2.0 | ≤1.5 |
| ＞50 | ≤2.0 | ≤1.5 | ≤1.0 |
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