... supplying the heat exchangers for Midea, Gree, TCL, LG, Samsung, Panasonic etc.Product Features:1. Material: copper, aluminium, galvanized ... (mm)21.652212.711.627.5Tube MaterialCopper, Aluminium Copper, Aluminium Copper, Aluminium CopperCopperType of Tube Smooth Tube, Inner Grooved ... with high quality products and perfect delivery date. copper tube shell and tube heat exchanger for air conditioner