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 Changshu Hongchang Heat Exchanger Manufacturing Co. Ltd., located in Changshu Jiangsu Province, is a professional enterprise specializing in production and selling various types of heat exchangers. These heat exchangers are applied to the air-conditioning systems of rail transit and bus, and also applied to special types of air - conditioning units, commercial air- conditioning units, freezing & refrigerating units, and industrial cooling systems. ……