Chinese National Standard List: Arrangement of transmission system group and frequency spectrum |
GB 4577-1984 Specification for channel translating equipment used on carrier systems
Issued on: Price(USD): 190.0 |
GB 4576-1984 Specification for group translating equipment used on carrier systems
Issued on: Price(USD): 180.0 |
YD/T 553-1992 Specification for Group Translating Equipment Used on Carrier Systems
Issued on: 1900-1-1 Price(USD): 210.0 |
YD/T 554-1992 Specification for Channel Translating Equipment Used on Carrier Systems
Issued on: 1900-1-1 Price(USD): 210.0 |
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