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Out shell: Galvanized steel
Inner tank: SUS304-B
Frame: stainless steel or Galvanized steel
Available size: 16/18/24/30 match with 100L/150L200L/300L
Diameter of evacuated tube:47/1500mm or 58/1800mm
Diameter of the out tank: 420/470/520mm
Insurlation layer: 55mm polyuranthen