... manufacturer in China. Populace is supplying the heat exchangers for Midea, Gree, TCL, LG, Samsung, Panasonic etc ... 31.75x27.5mm, equilateral triangle arrangement.7. Suitable for R134a, R22, R404a, R407c refrigerant and so on. ... people with many years of experiences. 4) Three- step Quality control. Inspect the raw material, unfinished products ... tube shell and tube heat exchanger for air conditioner