Available
Double Vacuum Heating Tube
Water Heater, Solar Thermal
High Borosilicate Glass 3.3
137mm Diameter
Magnetron Sputtering Coating
High Hot and Cold Resistance, High Absorption Rate
Length and Diameter Can Be Customized
3-Layer, Copper/Stainless Steel/Aluminum
Carton/Wood Packing
Diameter 137mm/Length 1860mm