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| Position: Chinese Standard in English/YB 12-1977 |
| YB 12-1977 (English Version) | |||
| Standard No.: | YB 12-1977 | Status: | superseded |
| Language: | English | File Format: | |
| Word Count: | Price(USD): | remind me the price change | |
| Implemented on: | Delivery: | ||
| Standard No.: | YB 12-1977 |
| Professional Classification: | YB Professional Standard - Metallurgy |
| Status: | superseded |
| Superseded by: | GB 9943-1988 High speed tool steel bars-Technical requirements |
| Superseded on: | 1990-1-1 |
| Language: | English |
| File Format: |