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GB/T 4728.9-2008
GB/T 4728.9-2008 Graphical symbols for diagrams—Part 9:Telecommunications:Switching and peripheral equipment
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Replaced |
| Standard Code | GB/T 4728.9-2008 |
| CCS | Basic standards and general methods |
| ICS | Comprehensive Electrical Engineering |
| Implement Date | 2009-01-01 |
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