China National Standards

China With DO40 Industry Standards English PDF List

  •  China " With DO40" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    JJG(SJ)02004-1988 (With DO40-frequency standard voltmeter test DO2-frequency voltage calibration device trial test procedures)
    		China Metrological Standards
    With DO40
    English PDF

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