阀门受压铸钢件射线照相检测 一级缺陷允许的最大夹砂和夹渣尺寸
透照厚度 | ≤10 | >20~20 | >20~40 | >40~80 | >80~120 | >120~200 | >200~300 |
夹砂和夹渣的最大尺寸 | 6.0 | 8.0 | 10.0 | 14.0 | 18.0 | 20.0 |
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