Haining city baoguang solar energy industrial., ltd China |
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| normal tube |
 (Product Photo) |
| | Features:
1) Structure: all glass coaxial dual tube
2) Material: high borosilicate glass 3.3
3) Interferential coating: copper, aluminum nitride
4) Capabilities:
a) Fast thermal collecting efficiency
b) High heat resistance
c) High cold resistance | | |
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