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| Chinese National Standard Category: Deck fittings |
| English Title: | Manhole covers with sampling hole for ballast tank |
| Chinese Title: | 带检查孔压载水舱人孔盖 |
| Standard No.: | CB/T 3981-2008 |
| Category No.: | U26 |
| Issued by: | the Commission on Science, Technology and Industry for National Defense |
| Issued on: | 2008-03-17 |
| Implemented on: | 2008-10-1 |
| Status: | abolished |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | 2024-07-11 |
| Superseding: | |
| Word Count: | 5000 words |
| Similar Standards: | GB/T 10841-2025 GB/T 43383-2023 GB/T 3477-2023 GB/T 42682-2023 GB/T 42683-2023 GB/T 11701-2021 GB/T 39617-2020 GB/T 35384-2017 GB/T 33572-2017 GB/T 5746-2014 GB/T 553-2012 CB/T 4185-2011 CB/T 169-2011 CB/T 3728-2011 CB/T 4190-2011 CB/T 4186-2011 GB/T 23425-2009 GB/T 23426-2009 GB/T 3477-2008 GB/T 14413-2008 |
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