How to remove the oil stains on the screw surface?

Update:10-05-2021
Summary:

1. Alkaline detergent: Alkaline detergent is a commonly […]

1. Alkaline detergent: Alkaline detergent is a commonly used detergent, which is made of alkali metal salt of detergent and surfactant;
2. Pickling agent: It is not an effective way to use acid cleaner to remove common stains on screws, but alkaline cleaner is generally used;
3. Soluble emulsion cleaner: The cleaner can dissolve the stains on the surface of high-precision screws and leave an anti-rust film on the surface.

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