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If you look at it with some detergent or something, will it be better?
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Ferment the oil stains with caustic soda and rinse it with hot water, and everything will be clean.
Note that caustic soda can hurt people.
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How can you not clean it if you clean it carefully.
Reason 1: The flange interface is installed when it is biased, and the sewer flow rate is reduced. >>>More
If the toilet has been used for a long time, the toilet bowl will produce yellow wax-colored dirt, which is difficult to clean, so what should I do if I can't clean it with ordinary methods? Here's a look at some tips for cleaning up dirt in your toilet. >>>More
Buy a bag of toilet powder and wash it, it's very cheap.
It's actually quite simple! All you need is a bottle of fabric softener! >>>More
Oxalic acid is the best, and it also cleans the floor tiles.