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Value-added Services
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| Position: Chinese Standard in English/YD 142-1978 |
| YD 142-1978 (English Version) | |||
| Standard No.: | YD 142-1978 | Status: | superseded |
| Language: | English | File Format: | |
| Word Count: | Price(USD): | remind me the price change | |
| Implemented on: | Delivery: | ||
| Standard No.: | YD 142-1978 |
| Status: | superseded |
| Superseded by: | YD/T 638.1-1993 Type Designation for Products of Posts and Telecommunications Industry General Rules |
| Superseded on: | 1994-2-1 |
| Language: | English |
| File Format: |