gb4656.1
gb4656.1, Total:1 items.
The international standard classification for "gb4656.1" includes: Mechanical engineering drawings .
The Chinese standard classification for "gb4656.1" includes: Basic standards and general methods .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 4656.1-2000 Technical drawings-Simplified representation of bars and profile sections
