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![PDF] Fabrication and testing of a non-glass vacuum-tube collector for solar energy utilization | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/d5b149ba35849264bab54a011f56e0b4001b0730/2-Figure1-1.png "PDF] Fabrication and testing of a non-glass vacuum-tube collector for solar energy utilization | Semantic Scholar")
PDF] Fabrication and testing of a non-glass vacuum-tube collector for solar energy utilization | Semantic Scholar
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Manufacturer of the Glass Heat Pipe Solar Vacuum Tubes for Solar System
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What is a Vacuum Tube?
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Vacuum tubes, glass, 100 pcs
