solar water heater,solar system,solar products,solar collector 1.high quality and reasonable price 2.lots of kinds solar water heater,solar system,solar products,solar collector1)The ... absorptivity≥0.92 emissivity≤0.06 resistance 25mm haily)(type:47mm*1500mm,58mm*1800mm 15,18,20,24,30 ... -1.5mm thickness)8)To deploy new type electric assist heater.Water temperature is well-distributed and more safe ...