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The above three types of [insulation nails](https://www.ynmaterials.com) are used for extruded polystyrene boards or rock wool boards. For extruded polystyrene boards, you need to drill holes with an electric drill before embedding screws. For rock wool boards, adhesive is used to fix the patch.
**Specifications:**
- Plastic types: Lengths of 40cm, 60cm
- Aluminum types: Lengths of 50cm, 60cm, 80cm
- Expansion nails: Lengths of 50cm, 80cm
