50 Tubes All Stainless Steel Manifold Vacuum Tube Solar Collector for Hotel Description 1. Working principle of high pressure solar heater: utilizes the alternative absorption coating on the inner surface of ... Подробнее
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Non pressured solar thermal evacuated tube collector for thermosiphon or split heating Working principle 1. The design of this type solar collector use the all-glass three targets vacuum tubes as the heat... Подробнее
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500 L Solar Hot Water Collector , Solar Vacuum Tube Collector Big Solar Heating System Horizontal type Double side vacuum tube solar collector, totally 50 tubes for one set,non-pressure system. Manifold box: ... Подробнее