SONGXIN is a dynamic automotive air conditioning products manufacturer who has been dedicating to the automotive industry for over 20 years.  SONGXIN has ONE-STOP SHOP, high ratio of in-house production - from the preliminary design and performance simulation to the production process of aluminum extrusion, stamping, fin forming, CNC milling, assembly, brazing, welding, laser cutting, and helium testing. SONGXIN has earned respect and  reputation from customers worldwide for the good quality products, and professional service.