GB/T 39542.3-2025

Mechanical pencils for technical drawings—Part 3:Black leads—Bending strengths of HB leads

NORMA vydána dne 30.5.2025

Anglicky a čínsky -
Elektronické PDF (5344.80 CZK)

The information about the standard:

Designation standards: GB/T 39542.3-2025
Publication date standards: 30.5.2025
Country: Chinese technical standard
Kategorie: Technické normy GB