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If the drain on the lower edge of the door is blocked or not very smooth, rain or water seeping into the car is left inside the door for a long time, after a period of time, it will start to rust from the inside out, until found, it is difficult to deal with.
owners can start from several aspects to keep the body from rust, as usual to keep the doors and drainage holes in the body.
Once there is a small scratch, rust, should first use very fine water sandpaper water gently grind off the rust spot, completely wipe, coated with a primer, to ensure that the rust will not expand, aggravate the
China
. You can also go to the auto supplies store to buy a small paint pen, to be coated after the primer dry, and then use sandpaper to smooth it, and then use the paint pen for coloring treatment.
can be modified with small area bruises or non-obvious areas. You can also try toothpaste, found a small trace of new slugs, just apply a little.
rain or car wash, don't forget to paint it again, it can simply be isolated, but it's just a way to cope, if you're free, or suggest going to the garage as soon as possible to repaint it.