1, always pay attention to the flatness of the steel plate when drawing. In the process of restoration, it is necessary to ensure the smoothness of the target area in order to obtain the best restoration effect.

2. When drawing, the handle should not be aimed at yourself and others, so as to avoid the meson falling off and hurting people.

3. If bulges appear around the damage during drawing, use a hammer to relieve the stress. This can ensure that the repaired steel plate will not have additional protrusions or irregularities.