heat collection solar water heater

Description

Dear Sir or Madam: We are the leading manufacture of producing kinds of standard solar vacuum tubes in our country. Our products have been exporting to many countries , like USA, Australia, Western Europe and so on. Also we got a good reputation from our customers. Many type of solar vacuum tubes are produced in our factory, contain Evacuated solar vacuum tubes, three-target vacuum tubes, purple(Titanium) golden vacuum tubes, superconducting quick heated collector tube, etc. And our vacuum tubes include different specifications. The diameter of our solar vacuum tubes have *7mm, *8mm and *0mm. The length contain ***0mm, ***0mm, ***0mm, ***0mm, ***0mm and so on. If you are interested in our products or have any question about them, please contact me without hesitation. Looking forward to cooperating with you! Sincerely yours Steven e-mail: *****