规格:SFA
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Features:
1) Reliable and efficient with twin-glass solar tubes
2) Easy plug-in installation
3) Outer tank material: stainless steel plate or powder coated color steel sheet
4) Inner tank material: 0.5mm thick SUS304 food grade stainless steel plate
5) Frame material: 1.2mm stainless steel
6) Superior heat preservation ensured by 50 - 65mm polyurethane foam insulation layer