Heat pipe solar collector 1.For 5years warranty! 2.OEM is welcomed! 3.Sample is ok The characteristic of Heat Pipe Solar Collectors1) Reliable, efficient, twin-glass evacuated tubes. 2) Red copper heat pipes, The water is heated by the heat pipe rapidly.3) There is no water in the vacuum tube,so the tube will not break in the winter. 4) It can be combined with the architecture perfectly, standard ...
