Available mold specifications as below. O.D.Copper TubesTube PatternMaterials of fins and tubingFin Pitch9.52mm(3/8”)25mm * 21.65mmAluminum or copper1.5, … , 4.5mm25.4 mm * 22mm1.5, … , 4.5mm7mm21mm * 12.7mm1.4, … , 3.6mm Customized service is available according to customers' drawings to meet end user's specific requirements. It is possible to open new molds per customers' annual usage.