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| Position: Chinese Standard in English/DB31/T 223-1999 |
| DB31/T 223-1999 (English Version) | |||
| Standard No.: | DB31/T 223-1999 | Status: | superseded |
| Language: | English | File Format: | |
| Word Count: | Price(USD): | remind me the price change | |
| Implemented on: | Delivery: | ||
| Standard No.: | DB31/T 223-1999 |
| Professional Classification: | DB Provincial Standard |
| Status: | superseded |
| Superseded by: | DB31/T 223-2020 Economical operation for steam heating system |
| Language: | English |
| File Format: |