The characteristic: 1.The design of this type production is according with the international fashion trend, it is easy to installation and operation. 2.Its quality is high and structure is strong and reliable, you can enjoy the hot water all-day. The details of material: 1.Inner tank: stainless steel SUS3040.5mm 2.Outer tank: painted steel0.4mm/Aluminum-zinc steel 0.4mm/stainless steel SUS4300.4mm/stainless steel SUS3040.4mm 3.Frame: galvanized steel 1.5mm/SUS4301.5mm 4.Vacuum tube: 47 1500mm 58 1800mm 5.Insulation layer: Adopting imported polyurethane55mm 6.Reflector: stainless steel SUS430/Alumina steel:AL99% Cartons