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| Chinese National Standard Category: Culture, education and drawing instruments, notebooks and cards |
| English Title: | Mechanical pencils and leads for general use—Classification|| dimensions|| quality and test methods—Part 2: Black leads |
| Chinese Title: | 一般用途活动铅笔和铅芯 分类、尺寸、质量和试验方法 第2部分：黑铅芯 |
| Standard No.: | GB/T 43550.2-2023 |
| Category No.: | Y50 |
| Issued by: | SAMR; SAC |
| Issued on: | 2023-12-28 |
| Implemented on: | 2023-12-28 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 7500 words |
| Similar Standards: |
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