Micoe - Model SWH -SZ58 -High Pressure Solar Water Heater with Heat Pipe

Inner tank:stainless steel SUS316L-1.2mm. Vacuum tube:QB-AL-N/AL-58-1800. Outer tank:painted steel-0.4mm;stainless steel SUS304-0.4mm. Frame:coated galvanized steel-1.5mm;stainless steel SUS430-1.5mm. The material of insulation: polyurethane 50mm.