T&L water-soluble cutting fluids are nitrite, zinc, chlorine and other heavy metals free, providing excellent microbial stability, effectively extending the service time of the processing fluid and extending the tool life. T&L COL AL423 is suitable for single-machine or centralized filtration system of difficult materials and a variety of difficult processing processes, especially suitable for aluminum and aluminum alloy roughing and finishing, but also suitable for cast iron, carbon steel materials processing applications; T&L COL EC415 is suitable for ferrous metal cutting, drilling, boring, milling, reaming and other processing technology, also suitable for aluminum alloy and other non-ferrous metal processing; The T&L COL SYN 843 can be used for boring, broaching, drilling, milling, twisting, sawing, tapping, turning and grinding of non-ferrous and ferrous metals. It can be used in conjunction with carbide tools. Generally grinding processing concentration is 3-5%, cutting processing concentration is 6-10%; T&L COL SYN 852 is mainly used in the grinding and grinding of castings and steel. The recommended concentration for general use is: 4-5%.