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1 A stainless steel plate with enamel coasting, laser welding technology. Outer tank:Painted/aluminum-zinc coated steel / SUS304 stainless steel,free welding technology. Vacuum tuber: High-efficient coating 58*1800heat pipe vacuum tube. Insulation layer: High-density polyurethane. Inner tank: SUS304-2B. 72 hours of efficient heat preservation. Hail-resistance:25mm-40mm.
Ultrasun Premium hot water systems are high specification thermosyphon type hot water heaters designed for long life operation in extreme conditions.