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Question:

How to remove the black marks on the floor?

How to remove the black marks on the floor?

Answer:

Don't be so troublesome,To strengthen the surface of the wooden floor wear-resisting layer is three oxidation two aluminum, is also commonly known as "artificial diamond", the general thickness of about 40. So you can use very fine sand to grind it gently until the black mark is worn off.In the process of grinding, there is no need to worry about the floor grinding, because the regular floor is tested by sanding, and the wear-resistant layer is of sufficient thickness.It is recommended that you use the finest sandpaper in the woodwork, as the sandpaper will cause visible scratches on the surface.
If the stain is small, you can also use cotton sticks dipped in water containing five percent acetic acid, over and over again in the stain Department, rust stains will disappear.
Rust stains: first soak with hot water, and then rinse with acetic acid or oxalic acid solution.

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