Detergent cleaners, which can be categorized into general oil cleaner, low-foam oil cleaner, and heavy-duty oil cleaner. They are compounded from various surfactants, penetrants, and additives, featuring functions of penetration, emulsification, dispersion, and stripping. These oil cleaners are specifically developed for the cleaning process of metal components during mechanical processing, and they are effective in cleaning oils, greases, and mixed dirt.