| 规格: | The tube has
1, vacuum and direct current,
2, selective coating
3, heat pipe in it,
the tube working temperature 100-400
It just work for solar thermal power plants, Parabolic trough system, solar air-condition.
The dia. Has 100mm, 120mm, inner dia 70-100mm, and the length has 1500mm, 1800mm, 2000mm, 4000mm |
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