Specification:
1.Flowering tube : copper with 11mm diameter ,and 0.7 mm thickness.
2.Head tube: copper with 25mm diameter ,and 0.75mm thickness.
3.Cover glass: tempered glass with 5mm thickness. High translucent ,good insulation, tightly for long time.
4.Bottom insulation: rock wool with 30mm thickness.
5.Side insulation: foam
6.Thick back sheet : galvanized steel sheet
7.Frame: aluminum alloy
8.Working pressure: 0.6MPA
9.Treated with special heat preservation: reduce the hot loss , and more efficiency absorb ,more beautiful.
10.Install easy ,resistance 10 stage wind power
11.Sealing rubber strip : the special and processed rubber material ,life span is long ,water tightness avoid infiltration.
12.Aluminum metal alloy layering : smooth rubber, no infiltration.
13.Package: 7 layers carton.