... Product Features:1. Material: copper, aluminium, galvanized plate.2. Copper pipe: diameterΦ7, Φ7.94, Φ9.52, Φ12.7mm, ... Aluminium CopperCopperType of Tube Smooth Tube, Inner Grooved Tube Smooth Tube, Inner Grooved Tube Smooth Tube, Inner Grooved Tube Smooth Tube, Inner Grooved Tube Smooth Tube, Inner Grooved ... quality products and perfect delivery date. shell and tube heat exchanger for air conditioning