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MT/T 639-2019

Chinese Standard: 'MT/T 639-2019'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
MT/T 639-2019English229 Add to Cart Days<=3 (Measuring method of initial velocity of gas eruption in borehole) MT/T 639-2019 Valid MT/T 639-2019

  SIMILAR unprotected-true-PDFs:
  GB 40881-2021  GB/T 23249-2009  MT 113-1995