High Efficiency Evacuated tube solar thermal collector Antifreeze Heat Pipe Vacuum Solar Collector for Solar Water Heating Quickly guidence a, Free br...
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... Water Heater Technical data Vacuum borosilicate 3.3 Coating Three layers coating, t...
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... two coaxial . The combines the efficient performance of vacuum with the rapid heat transfer capabil...
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... cover. The plate is attached to a series of parallel or one serpentine through which water or another liquid (such as an antifree...
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