solar water heater Product Description: Inner tank materials:SUS304-2B
Inner tank thickness:0.5mm
Outer tank: the steel coated with zinc
Outer tank thickness:0.37mm
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Keywords:SOLAR WATER HEATER , VACUUM TUBE
Vacuum tube Product Description: Each evacuated tube consists of two glass tubes. The outer tube is made of extremely strong transparent borosilicate glass, that ...
Keywords:SOLAR WATER HEATER
Vacuum Tubes Brand: RUTY Country of Origin: Made In China Product Description: Features:
It is developed by the rotary three-target magnetron sputtering te...
Keywords:vacuum tube , solar vacuum tube , all glass tube