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| Chinese National Standard Category: Rubber seal |
| English Title: | High temperature resistant oil O shape rubber seal ring materials |
| Chinese Title: | 耐高温滑油O形橡胶密封圈材料 |
| Standard No.: | HG/T 2021-1991 |
| Category No.: | G43 |
| Issued by: | RCMCI |
| Issued on: | 1991-06-27 |
| Implemented on: | 1991-12-1 |
| Status: | superseded |
| Superseded by: | HG/T 2021-2014 O-rings resistant to high temperature and oil |
| Superseded on: | 2015-6-1 |
| Abolished on: | |
| Superseding: | |
| Word Count: | 3000 words |
| Similar Standards: | HG 4-1420-1981 HG/T 3091-2000 JT 4125.2-1982 GB/T 13871.4-2023 GB/T 13871.3-2023 GB/T 13871.1-2022 GB/T 23661-2022 GB/T 23662-2022 GB/T 40325-2021 GB/T 27800-2021 GB/T 37996-2019 GB/T 37995-2019 GB/T 37210-2018 GB/T 36879-2018 GB/T 29992-2017 GB/T 34028-2017 GB/T 33326-2016 GB/T 33154-2016 GB/T 31330-2014 GB 29992-2013 |
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