Oil-based cleaning agents are a type of specialized cleaning product developed for oil-based stains such as mineral oil, lubricating oil, cutting oil, hydraulic oil, and anti-rust oil. Through solvent dissolution, surfactant emulsification, or chemical decomposition, they rapidly strip oil stains, oil residues, and sludge from the surfaces of metals, mechanical components, and equipment. Meanwhile, they take into account substrate protection (e.g., metal rust prevention, plastic corrosion protection). As an indispensable specialized cleaning agent in industrial production and equipment maintenance, they are widely used in fields such as machinery manufacturing, automotive, hardware, and molds.