Inner Tank : SUS304-2B food-grade stainless steel - 0.5mm thickness , laser welding technology .
Copper coil : Ø12mm*0.8mm , total length 25 Meters , heat exchanger 1.0 square meter .
Vacuum Tube : High efficient ALN/ALN-SS/CU coating , 58 x 1800mm vacuum tube - 1.6mm thickness , resist 25mm hail .
Outer Tank : Painted galvanized steel/ SUS304-2B food-grade stainless steel - 0.4mm thickness , free-welding technology .
Insulation Layer : High density polyurethane - 50mm thickness , 72 hours efficient thermal insulation .
Frame support : Painted galvanized steel - 1.5mm thickness , anti-corrosive and anti-ultraviolet .
M8 Stainless steel SUS 304 bolts and nuts .
58mm Silicone seal ring and dust ring
Stainless steel SUS304 - 2.0mm thickness 3/4' or 1/2' inlet, outlet, air vent