GB 7159
GB 7159, Total:1 items.
The international standard classification for "GB 7159" includes: Electrical engineering in general .
The Chinese standard classification for "GB 7159" includes: Basic standards and general methods .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 7159-1987 General rules for the formulation of letter symbols in electrotechnology
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