In 1804, a British mining technician named Dervisk first used the steam engine of Watt to build the world's first steam locomotive. In 1879, Siemens Electric Company of Germany developed the first electric locomotive. The train was in China. And the irreplaceable value of any other vehicle in the world as a vehicle carrying capacity. The development of China's high-speed railway is also growing stronger. From 199 km to 350 km/h, the future speed may rise to the point where we can't predict, but the same problem is that high speed brings safety issues that are of the utmost concern to global technologists. The high temperature operation of the motor and the long-term high temperature problem of the power equipment must be faced. The cooler technology of the motor and power equipment is a difficult problem in the world. We are also learning to innovate more liquid cooling technology. More Applications. At present, our microchannel Heat Exchangers and cold plate heat exchangers have matured and established long-term cooperation with many countries.