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Inner tank:SUS304-2B food grade stainless steel.Outer tank: Galvanized steel + powder painting
Vacuum tube: Three-High vacuum tube its absorb rate is 94-96%
Type: 16-40 tubes
Bracket:galvanized steel plate with plastic spraying.
Heat preservation:55-60mm imported PU; integral foaming can keep the water temperature last for 72 hours.
Capacity:100-300 liter
Life span:15years.
Freeze protection:-25?
