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non pressure solar water heater
1)Inner tank: Stainless steel SUS304-2B 0.4mm,360mm
2)Outer tank: Galvanized steel 0.35mm,460mm
3)Vacuum tube: AL-N/AL/10-4pa/high borosilicate 3.3
4)Insulation: Polyurethane 55-65mm 33kg/m3
5)Bracket: Galvanized steel
6)Packing material: Export standard carton
solar power water heater