▎ 摘　　要

NOVELTY - Metal extruding tapping fluid comprises composite rust inhibitor, extreme pressure agent, lubricant, auxiliary agent and corrosion inhibitor. USE - Used as metal extruding tapping fluid. ADVANTAGE - The tapping fluid: has low-toxic or non-toxic raw materials; is less irritating to the operators body, and suitable for tapping ferrous metals (extruded iron-free tapping and internal and external thread tapping, etc.); has excellent cleaning, cooling, anti-rust and extreme pressure lubrication properties, very clean workpiece after tapping; is easy to clean or handle; and low smell and no flash point of the ingredients in the raw materials.