Oil cleaner, which can be categorized into general oil cleaner, low-foam oil cleaner, and heavy-duty oil cleaner. It is a compound of various surfactants, penetrants, and additives, featuring functions of penetration, emulsification, dispersion, and stripping. The oil cleaner is specifically developed for the cleaning process of metal components during the mechanical processing, and it has cleaning effects on greases, oil stains, and mixed dirt.