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渗透探伤方法
Methods for liquid penetrant inspection
价格：￥0.00
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合成橡胶胶乳 取样
Synthetic Rubber latex -- Sampling
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控制渗透探伤材料质量的方法
Methods for controlling the quality of liquid penetrant materials
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无损检测--渗透检查A型对比试块
Non destructive testing -- Penetrant testing -- A type comparator block
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