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| Chinese National Standard Category: Daily-use hardware |
| English Title: | Marble ferrule door lock |
| Chinese Title: | 弹子插芯门锁 |
| Standard No.: | QB/T 3838-1999 |
| Category No.: | Y73 |
| Issued by: | |
| Issued on: | |
| Implemented on: | 1999-4-21 |
| Status: | superseded |
| Superseded by: | QB/T 2474-2000 Pin Tumbler Mortice Door Lock |
| Superseded on: | 2000-10-1 |
| Abolished on: | |
| Superseding: | GB 8386-1987 Pin tumbler mortice door lock |
| Word Count: | 3500 words |
| Similar Standards: | GB/T 29601-2025 GB/T 40356-2021 GB/T 40355-2021 GB/T 40354-2021 T/GDCDC 014-2020 GB/T 37634-2019 GB/T 36920-2018 GB/T 36500-2018 GB/T 34221-2017 GB/T 32432-2015 GB/T 32388-2015 GB/T 32389-2015 GB/T 32147-2015 GB/T 18746-2015 QB/T 4902-2016 GB/T 32095.2-2015 GB/T 32095.1-2015 GB/T 32095.4-2015 GB/T 32095.3-2015 QB/T 4856-2015 |
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