solar tube :
1.Reasonable price
2.High quality solar tube
3.Borosilicate glass 3.3
4.5 years guarantee,15 years life
Port: SHANGHAI
Minimum Order Quantity: 1x20ft
Supply Ability: 30000 Piece/Pieces per Day
Payment Terms: L/C,D/A,T/T
Contact SupplierPackaging Detail: Standard Export Carton Package
Delivery Detail: Within two weeks
solar tube:
1.Length(nominal):1500mm/1800mm
2.Outer tube diameter:47mm/58mm
3.Inner tube diameter:37mm/47mm
4.Glass thickness:1.6mm
5.Material:Borosilicate grass3.3
6.Absorptive coating:Cu-SS-ALN/ALN
7.Absorption efficiency: >96%(AM1.5)
8.Emittance:<5.6%W/(80 °C)
9.Heat Loss:≤0.71(m²°C)
10.Pressure-endure ability:0.6MPA