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1. material of inner tank: SUS304-2B 0.40MM thickness
2. material of outer tank???Color steel
3. bracket materail???Galvanized plate 1.50MM
4. heat preservation: 72-80h
5. insulation ???55MM foaming
6. Absorption rate???≥93%???Heat radiation rate???≤6%(100???)
7.Angle:45°
Sell Solar Water Heater
