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Mechanical pencils for technical drawings—Part 2:Black leads—Classification and dimensions
Translate name
STANDARD published on 21.7.2020
Designation standards: GB/T 39542.2-2020
Note: WITHDRAWN
Publication date standards: 21.7.2020
SKU: NS-1014977
Country: Chinese technical standard
Category: Technical standards GB
Latest update: 2026-03-25 (Number of items: 2 269 413)
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