1. Tank
Inner tank: Esculent standard SUS 304 stainless steel, 0.31mm thickness, argon       welding technology.
Outer tank: Colored steel sheet / silver glitter sheet / pearlite sheet.
    Insulation layer: Polyurethane foaming, thickness: 60mm.
    Heat preservation: 72h.
2. All-glass vacuum tube:
Size: Φ47mmX1500mmX18tubes
    Hail resistance: 25mm
3. Bracket:
   Material: Galvanized steel sheet, thickness: 1.5mm.
   Angle: 38°~  45°
4. Accessories: Back-up electric heating element, Controller.[...]