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| Chinese National Standard Category: Valve |
| English Title: | General purpose industrial valves - Technical specification for ductile iron castings |
| Chinese Title: | 通用阀门 球墨铸铁件技术规范 |
| Standard No.: | GB/T 12227-2025 |
| Category No.: | J16 |
| Issued by: | SAMR, SAC |
| Issued on: | 2025-10-31 |
| Implemented on: | 2026-5-1 |
| Status: | to be valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | GB/T 12227-2005 General purpose industrial valve - Specification of spheroidal graphite iron castings |
| Word Count: | 9000 words |
| Similar Standards: |
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