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GB/T 20928-2020

Chinese Standard: 'GB/T 20928-2020'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB/T 20928-2020English310 Add to Cart 0--3 minutes. Auto immediate delivery. Seamless inner grooved copper tube GB/T 20928-2020 Valid GB/T 20928-2020

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