The main content of the expurgated standard GB/T 11345 was introduced.The characters of the new standard were summed up and compared with the old standard GB/T 11345.%介绍GB/T 11345《焊缝无损检测超声检测技术、检测等级和评定》标准的修订概况和主要内容,并将GB/T 11345新版和GB/T 11345-1989标准进行比较,总结出了新版标准的特点.
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