Aluminum tube water installation technical standard:

Aluminum tube with SUPER GLUE adhesive does not harden: Inspection standard: Place the SUPER GLUE aluminum tube in an oven, heat it to 72C, and place it in the oven for seven days. The SUPER GLUE adhesive will not solidify, and then place it in the oven for 14 days. If it does not solidify, the adhesive will become thicker.