2. Before opening the umbrella, shake the umbrella surface, straighten the ribs, and then slowly open it to prevent breakage.
3. Don't hang the umbrella on the lime wall that contains alkali to prevent the umbrella surface from becoming brittle.
4. Don't use umbrella to pick things, don't use umbrella as a walking stick, keep the umbrella away from high temperature, which can prevent the umbrella from deformation.
5. The new umbrella should not be left unused for a long time, so as to avoid brittle and deterioration after being stored for too long.
6. In addition, the sun umbrella should be wiped clean, dry, put it at room temperature for a while, and then put it away, so it can easily make the umbrella surface aging, brittle and easy to rot.
7. When the umbrella is folded, hold the top of the umbrella, try not to touch the place where the folding part of the umbrella bone and the umbrella surface are connected with sweat-stained hands, so as to avoid imprinting there in the future and affect the appearance.
