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Solar vacuum Tube
Seller:Qunsheng Group Co Ltd Solar Division 超级商家" For seller message
Commodity quantity: pc Browse 22362 Several  OOS
Commodity discount: 6.7折  Bestows the integral:100
Commodity price : ¥15元
¥10元

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Solar vacuum tubes is the main component of solar water heater and collectors.The evacuated tube is similar to a conventional thermos bottle and consists of two borosilicate glass tubes,with high chemical and thermal shock resistance. The inner tube is coated with a sputtered solar selective surface film. the tube jacket is evacuated to virtually eliminate heat loss by conduction and convection. our tubes are produced according to GB/T 17049/2005