China National Standards

China Verification Regulation Quartz Industry Standards English PDF List

  •  China "Verification Regulation Quartz" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    JJG 864-1994 Verification Regulation of Quartz Control Plate
    旋光标准石英管    		 China Metrological Standards
    Verification Regulation Quartz
    English PDF

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