GB/T 33817-2026

Method for determination of the carbon film and carbon content on the inner surface of copper and copper-alloy tube

STANDARD published on 25.5.2026

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The information about the standard:

Designation standards: GB/T 33817-2026
Note: Execute Date: december 2026
Publication date standards: 25.5.2026
Country: Chinese technical standard
Category: Technical standards GB