... & heat pumps heat exchanger manufacturer in China as well as high quality metal cabinet, copper tube and heat ... manufacturer in China. Populace is supplying the heat exchangers for Midea, Gree, TCL, LG, Samsung, Panasonic etc. ... 6mm, 31.75x27.5mm, equilateral triangle arrangement.7. Suitable for R134a, R22, R404a, R407c refrigerant and so on. ... . copper tube shell and tube heat exchanger for heat pump