Supplementary Info:
Vacuum tubes assimilate the advanced 12 layers of spattering deposition of trivalent element technology, high borosilicate glass, gradual change of SS-C/CU selective complex absorptive coating and these make vacuum tubes have high performance of absorptance and low reflection ratio. Through the interlayer, vacuum has a unique effect of thermo, with its tempurature up to 380 degrees of idle sunning, performing a strong heating ability.* Optional size: 47 x 1,500mm / 58 x 1,800mmPacking:Export carton
solar water heater Photo:
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