1. Place the edge closing tool on the rock wool sandwich panel chassis, hold the end of the rock wool sandwich panel with the tool, and fold the chassis upward.
2. When this kind of plate is used in the roof with a slope less than one fifth, its lower chassis needs to be slightly bent down to ensure that the rainwater can be discharged along the end of the color steel.
3. The operation of downward flanging must be carried out after the rock wool sandwich panel is fixed, otherwise the operation will be hindered.
4. When folding the edge of the rock wool sandwich panel, properly open the opening of the prying tool, clamp the chassis end with the tool, and push it in as far as possible.
5. Make the tool close to the end of the chassis, and shake the handle for about 200 at the same time. In this way, a downward hem will be formed at the end of the rock wool sandwich panel, so as to complete the edging work of the rock wool sandwich panel.
