Hot-sales Products
non-pressurized erect-plug solar collector freezing-resist,suitable for temperature from 0 to -20 non-pressurized,keep it with water to ensure the tubes can't be damaged It's with many models for optional.In sunny day,it can produce 55 water in 70-130kg/m2 absorptance s90%,low emittance:h8%,daily average heat efficiencyd50%
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non-pressurized level-plug solar collector freezing-resist,suitable for temperature from 0 to -20 non-pressurized,keep it with water to ensure the tubes can't be damaged It's with many models for optional.In sunny day,it can produce 55 water in 70-130kg/m2 absorptance s90%,low emittance:h8%,daily average heat efficiencyd50%
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