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- Yaoguo solar thermal 3 layers Solar evacuated tubes solar collector
- Yaoguo solar thermal 3 layers Solar evacuated tubes 58*2100mm
- Yaoguo solar thermal Purple gold Solar vacuum tubes 58*1800mm
- Yaoguo solar thermal 3 layers Solar evacuated tubes 58*1800mm
- 3 layers all glass Solar vacuum tubes 58*1800mm
