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The numbering tube is mainly used to identify wires and cables, so as to ensure the safety and smoothness of cables and facilitate the maintenance of lines; Its materials include heat shrinkable pipe, PVC pipe, sleeve, etc; The specification is matched with the cable, and the common ones are 1.0, 1.5, 2.5 mm2, etc.
The numbering tube is mainly used to identify wires and cables, so as to ensure the safety and smoothness of cables and facilitate the maintenance of lines; Its materials include heat shrinkable pipe, PVC pipe, sleeve, etc; The specification is matched with the cable, and the common ones are 1.0, 1.5, 2.5 mm2, etc.
| Specifications | Maximum applicable diameter (mm) | Number. 0-9 quantity | remarks |
| 1.0 square | 4 | 350 | - |
| 1.5 square meters | 5 | 300 | - |
| 2.5 square meters | 6 | 270 | - |
| 4.0 square | 7 | 160 | - |
| 6.0 square | 8 | 150 | Class 5 network cable (special) |
| 10 square meters | 10 | 45 | Special for Category 6 network cable |
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