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GB 50431-2020

Chinese Standard: 'GB 50431-2020'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB 50431-2020EnglishRFQ ASK Days<=3 Technical standard for belt conveyor engineering GB 50431-2020 Valid GB 50431-2020

  SIMILAR unprotected-true-PDFs:
  GB 51011-2014  GB/T 50761-2018  GB 50128-2014