1) Inner tank:stainless steel--0.60mm. 2) Vacuum tube:AL/N/AL-58/1800 3) Outer tank:painted steel-0.4mm;stainless steel SUS304-0.4mm. 4) Frame:coated galvanized steel-1.5mm;stainless steel SUS430-1.5mm. 5) The masterial of insulation:polyurethane 50mm. 6) The reflector:aluminum component;AL99.85% surface oxidation. 7) Copper coil:Ø12mm,thickness 0.8mm.
|