This classification covers specialty lubricants and greases other than machine oil, gear oil, and compressor oil. It includes lubrication products specialized for specific machinery and environmental conditions such as food machinery lubricants, high-temperature grease, electrical insulating oil, vacuum pump oil, chainsaw oil, hydraulic fluid, refrigeration oil, spindle oil, turbine oil, sliding surface grease, bearing grease, silicone grease, and fluorine-based lubricants. Distinguished from general machine oil, gear oil, and compressor oil, this category specializes in lubricants requiring special performance requirements and standard compliance.