10 years experiences. Material: copper, aluminium, galvanized plate. 100% no leakage. Customized. Populace Group is one of ... , TCL, LG, Samsung, Panasonic etc.Product Features:Material: copper, aluminium, galvanized plate.Copper pipe: diameterΦ7, Φ7.94, Φ9.52, Φ12 ... high quality products and perfect delivery date. heat exchanger for air conditioner