The above three types of insulation nails are respectively used for extruded boards or rock wool boards. Extruded boards require using an electric drill to drill holes first, then embedding screws. Rock wool boards require using glue to fix the patches.
Specifications and models
Plastic ones: length 40cm, 60cm
Aluminum ones: length 50cm, 60cm, 80cm
Expansion nails: length 50cm, 80cm




