Inner tank material: 0.5mm S.S, SUS304-2B food grade
Outshell material: 0.5mm color steel
Frame material: Galvanized steel 1.5mm
Evacuated tube: Specification diameter 58X1800mm
Vacuume degree: 303X10-3Pa
Absorptivity: >0.93
Emissivity: <0.08
Anti-freeze: -10C
