Classification of solar vacuum tubes
Domestic solar water heater using solar vacuum tube in accordance with the pipe diameter is divided into 37, 47, 58, 70mm
According to the production process is divided into: solar ordinary clarinet, the common blue tube; three blue tube, three Zijin pipe
According to the length is divided into 1.2, 1.5, 1.6, 1.8, 2.1, 2.3m, etc.
