glass vacuum heat collection tube ,solar vacuum tube,solar evacuated tube Certification:ISO9001-2000
glass vacuum heat collection tube ,solar vacuum tube,solar evacuated 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
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)
glass vacuum heat collection tube (Certification:ISO9001-2000)
