GB/T 39542.3-2020

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

NORMA vydána dne 21.7.2020

Anglicky a čínsky -
Elektronické PDF (2939.90 CZK)

The information about the standard:

Designation standards: GB/T 39542.3-2020
Note: NEPLATNÁ
Publication date standards: 21.7.2020
Country: Chinese technical standard
Kategorie: Technické normy GB