Refrigeration lubricants, namely, lubricants for industrial machinery for use in metal-working processes, metal pre-treatment processes, machining with defined cuts, turning, milling, drilling, thread cutting and forming, rubbing, broaching, sawing and gear hobbing; Cooling lubricant concentrates, namely, lubricants for industrial machinery for use in metalworking processes, metal pre-treatment processes, machining with defined cuts, turning, milling, drilling, thread cutting and forming, rub...