American Series Wash Pump,Electric Water Pump Motor,American Series Windshield Washer Pump,Wash Pump ruian city yixuan auto parts co.,ltd , https://www.yixuanauto.comThe quality of heat treatment is directly related to the quality of subsequent processing and ultimately affect the use of parts performance and life expectancy, while the heat treatment is the machinery industry, major energy consumers and large pollution. In recent years, with the progress of science and technology and its application in heat treatment, the development of heat treatment technology is mainly reflected in the following aspects: