GB/T 39011.2-2020
Mechanical pencils for technical drawings-Part 2: Black leads-Classification and dimensions
- Standard No.
- GB/T 39011.2-2020
- Language
- Chinese
- Release Date
- 2020
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Lastest
- GB/T 39011.2-2020
GB/T 39011.2-2020 history
- 2020 GB/T 39011.2-2020 Mechanical pencils for technical drawings-Part 2: Black leads-Classification and dimensions
GB/T 39011.2-2020 -All Parts
GB/T 39011.1-2020 Mechanical pencils for technical drawings-Part 1:Classification, dimensions, performance requirements and testing
GB/T 39011.2-2020 Mechanical pencils for technical drawings-Part 2: Black leads-Classification and dimensions
GB/T 39011.3-2020 Mechanical pencils for technical drawings-Part 3: Black leads-Bending strengths of HB leads