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DL/T 646-2021

Chinese Standard: 'DL/T 646-2021'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
DL/T 646-2021EnglishRFQ ASK Days<=3 (Technical requirements for manufacturing steel pipe structure for power transmission and transformation) DL/T 646-2021 Valid DL/T 646-2021

  Google-Books (Full-PDF, without digital protection, will be auto-delivered in 0~10 mins):   DL/T 646-2012  DL/T 506-2018  DL/T 1498.1-2016