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| Position: Chinese Standard in English/CECS 21-1990 |
| CECS 21-1990 (English Version) | |||
| Standard No.: | CECS 21-1990 | Status: | superseded |
| Language: | English | File Format: | |
| Word Count: | Price(USD): | remind me the price change | |
| Implemented on: | Delivery: | ||
| Standard No.: | CECS 21-1990 |
| Professional Classification: | CECS Engineering Construction Standard |
| Status: | superseded |
| Superseded by: | CECS 21-2000 Technical specification for inspection of concrete defects by ultrasonic method |
| Superseded on: | 2001-1-1 |
| Language: | English |
| File Format: |