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gb/he 7622
gb/he 7622, Total:1 items.
In the international standard classification, gb/he 7622 involves: Telecommunication systems.
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, gb/he 7622
- GB/T 7622-1987 600/1200--Baud modem standardized for use in the general switched telephone network