China National Standards

China Verification Regulation Double Industry Standards English PDF List

  •  China "Verification Regulation Double" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    JJG 274-2007 Verification Regulation of Double Tube Mercury Barometer
    双管水银压力表检定规程    		 China Metrological Standards
    Verification Regulation Double
    English PDF

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