Pressure solar collector:
1. Manifold Interior Material: SUS304-2B
2. Manifold Exterior Material: SUS304-2B/Aluminum alloy
3. Tube Dimensions: 58*1800mm/47*1500mm
4. Vacuum Tube Coating Material: AL-N-AL
5. Insulation Layer: Polyuttethane foaming or rock wool
6. Test Pressure: 6 bar
7. Heat Preservation: 72hrs
8. Hail Resistance: 25mm
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