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1. All normal sliding doors have 4 wheels. This is true for single-glass doors, double-glass doors and sliding doors on wardrobes, there are two on top and bottom, but the size and shape are different.
There are those who sell door and window accessories, but you may have to bring your original one to prevent it from being different.
There are shops selling furniture accessories in the city of decoration. Buy one and change it yourself, mine has been replaced.
1- Nail polish remover removal tape offset printing method, use a paper towel to stick some nail polish remover to wipe the place with offset printing; >>>More
Now it is not a slot, most of them are single-sided or double-sided clamps, and the master of decoration should know.
Dish soap or other stain remover.