Features:1) Simple structure, with copper coil heat exchanger inside, coil oil in tank,good in anti-corrosion2) 18 tubes/set, capacity of 150L3) 20 tubes/set, capacity of 165L
Features:1) High heat effectiveness: higher than all glass evacuated solar collector tubeby 15%2) Heat pipe conduction: successfully prevents the defects of tube breakage and lowpower output caused by
Features:1) High heat effectiveness: higher than all glass evacuated solar collector tubeby 15%2) Heat pipe conduction: successfully prevents the defects of tube breakage and lowpower output caused by
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