China National Standards

China Verification Regulation Hammering Industry Standards English PDF List

  •  China "Verification Regulation Hammering" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    JJG 411-1997 Verification Regulation of Hammering Type Brinell Hardness Tester
    锤击式布氏硬度计检定规程    		 China Metrological Standards
    Verification Regulation Hammering
    English PDF

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