Manifold:red copper inner manifold, aluminum alloy outer manifold

vacuum tube:1.6mm thickness borosilicate glass3.3, ?58mm×1800mm,with copper heat pipe 

Absorbing coating:Cu-Al-SS

Working pressure≦0.6Mpa;Absorptance≧0.91

Thermal insulation: rock wool

Manifold(interior):red copper;(exterior):Aluminum Alloy

Glass tube heat pipe:anti-freezing＞-40℃

Bracket: 2.5mm thickness aluminum alloy