... aluminum plate 0.5mm / gavanized steel board 0.3mm Header tube: full copper TP2 1060mm*22mm/25mm*0.6mm (L* ... conductivity 8, pressure standing 9, no blasting 10, leakproofApplicationThe water heating systems for commercial, buildings, hotels, hospitals, swimming pools 2.About ... ,Eastern Europe ,Southeast Asia, Mid East ,Western Europe. CE, Solar Keymark split flat plate solar water heater collector