solar glass vacuum collector tube(Certification:ISO9001-2000)

solar glass vacuum collector tube,solar evacuated,solar glass collector tube
1.Certification:ISO9001-2000
2.High efficiency
solar glass vacuum collector tube,solar evacuated,solar glass collector tube


1.
Vacuum Tube
1).
External
pipe diameter :47mm/58mm/70mm

Internal
pipe diameter:37mm/47mm/58mm
2).
Thickness
:1.6mm/2.0mm
3).
Length
:1500mm/1600mm/1700mm/1800mm/1900mm/2000mm/2100mm
4).
Material:
high borosilicate 3.3 glass.
5).Pass
The Quality Supervision and Inspection
2.
HuaLi Solar Collector Features
1).
Highly efficient absorber
,daily average efficiency over 50%
2).Can be used
all years round

in the climate
3
).Low heat loss
4).
Stable coating plating technology
5).
High heat resistanceand high cold resistance.
(Certification:ISO9001-2000)