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  • Calibration Specification for Reinforced Concrete Covermeter and Floorslab Thickness Tester
    JJF 1224-2009
  • Verification Regulation of Ball Pneumatic Dead Weight Tester
    JJG 942-2010
  • Designation and Classification Code for Measuring Instruments
    JJF 1051-2009
  • Measurement and Test Norm of Thermostatic Bath’s Metrological Characteristics
    JJF 1030-2010
  • Verification Regulation of Test Equipment for Vehicle Speed Radar Measurement Meters
    JJG 771-2010
  • Calibration Specification for Gear Dual-flank Meshing Measuring Instrument
    JJF 1233-2010
  • Calibration Guideline of the Temperature Block Calibrators
    JJF 1257-2010
  • Raw Cotton Moisture Tester
    JJG 845-2009
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