美国进口原版 ASNT Jaeger Reading Card 耶格视力表

　　ASNT-2224 Jaeger Reading Card 耶格视力表 数量1张 规格：32开 语言：英文

　　ASNT Jaeger Reading Card 耶格氏视力表 无损检测专用

　　this is the near-vision acuity eye card referenced in SNT-TC-1A. A must for employers qualifying NDT inspection personnel. NOTE: This reading card has not been certified as satisfying other standards bodies near-vision acuity requirements. KEYWORDS: JAEGER; VISUAL ACUITY; VISUAL; VISION; VISION TEST; EYE CHART.

　　.本视力表有J1，J2，J3，J4，J7，J8，J10，共7个等级；

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