China National Standards

China instruments—Ultrasonic GB Standards List

  •  China "instruments—Ultrasonic" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 39849-2021 Non-destructive testing instruments—Ultrasonic time-of-flight diffraction instrument—Methods of performance tests
    无损检测仪器 超声衍射声时检测仪 性能测试方法    		 China National Standards
    instruments—Ultrasonic
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