emulsified oil is a product made by adding proper amount of rust inhibitor and emulsifier to base oil. Oil-based appearance is brownish yellow to light brown translucent uniform oil body at room temperature. It is suitable for high-speed and high-precision cutting of ferrous and non-ferrous metal workpieces in metal processing and turning, drilling, boring, reaming, wire cutting and calendering of common machine tools, and can improve the durability and cutting efficiency of cutting tools.