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为配合各种无损探伤检测人员教学培训与考试,提高本专业技术水平,以及各地不少单位来函征订,我们特此录制了一批《射线探伤与底片评定》录像片,满足各方面的需要。此录像片系无损探伤专家云庆华同志主讲,劳动部锅炉压力容器安全监察局监制,铁道部电气化工程局等单位摄制,并请了六位专家教授审核。此片司供锅炉压力容器制造厂和其它有关工厂以及劳动部门监
In order to meet the teaching, training and examinations of various non-destructive testing personnel, improve the technical level of the profession, and sign letters and calls from many localities, we hereby record a batch of “radiographic flaws and film ratings” videos to meet various needs. This video was made by non-destructive flaw detection expert Yun Qinghua, led by Ministry of Labor Boiler and Pressure Vessel Safety Supervision Bureau, Ministry of Railways Electrification Engineering Bureau and other units. Six experts and professors were invited for review. The film division for the boiler pressure vessel manufacturer and other related factories and labor supervision department