... of the largest AC & heat pumps heat exchanger manufacturer in China as well as high quality metal cabinet, copper tube and ... heat pumps manufacturer in China. Populace is supplying the heat exchangers for Midea, Gree, TCL ... , R22, R404a, R407c refrigerant and so on. Heat exchanger technical data sheet Series 1Series 2Series 3Series 4Series 5Tube DiameterΦ 9.52Φ9 ...