Haining City Baoguang Heat Collection Tubes Co., Ltd. [China]

Features: 1) Structure: all glass coaxial dual-tube, an inner tube into a dual-glass outer tub Features: 1) Structure: all glass coaxial dual-tube, an inner tube into a dual-glass outer tube 2) Material: high borosilicate glass 3.3 3) Thermal collecting efficiency up to 40%

Three-Cavity Evacuated Tube