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| Chinese National Standard Category: Metallographic testing method |
| English Title: | Copper and copper alloys inspction method of microstructure for cast and wrought products |
| Chinese Title: | 铜及铜合金铸造和加工制品显微组织检验方法 |
| Standard No.: | YS/T 449-2002 |
| Category No.: | H24 |
| Issued by: | SETC |
| Issued on: | 2002-11-22 |
| Implemented on: | 2003-1-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 4000 words |
| Similar Standards: | GB/T 10561-2023 GB/T 13299-2022 GB/T 30834-2022 GB/T 41080-2021 GB/T 40404-2021 GB/T 40304-2021 GB/T 40281-2021 GB/T 40067-2021 GB/T 39077-2020 GB/T 31309-2020 GB/T 37787-2019 GB/T 37793-2019 GB/T 224-2019 GB/T 37598-2019 GB/T 36591-2018 GB/T 15711-2018 GB/T 36165-2018 GB/T 34474.2-2018 GB/T 34474.1-2017 GB/T 6394-2017 |
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