6.Coating of vaccum tube:ALN/AIN-SS/CU
5.Hail resistence:25mm
4.Angle of operation:5-90 degree
3.Frame:galvanized steel 1.5mm or aluminu steel
2.Heat preservation:Rock wool and polyurethane
Specification:1.Mainfold interior,red copper,exterior,aluminum alloy
Solar collector:
Solar collector:
Heat pipe solar collector,well designed for the balcony building and slopped styled houses