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| Professional Standard Category: Professional Standard - Transport |
JT/T 646.2-2025 Highway noise barriers - Part 2: Technical requirements and testing methods of materials
公路声屏障 第2部分：材料技术要求及检测方法;
| Category No.: | JT | Valid Status: | valid |
| Issued Organization: | MOT | Issued Date: | 2025-08-29 |
| Implemented Date: | 2025-12-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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