solar vacuum tube

solar vacuum tube
1.material :High-quality borosilicate glass.
2.assimilate the advanced 9 layers of spattering deposition of trivalent element technology, Inner coating of tubes consists of layers of copper, stainless steel and aluminium nitride .
3.advanced filming technology .
4. Through the interlayer, vacuum has a unique effect of thermo, with its temperature up to 380 degrees of idle sunning.
5. high performance of absorptance ( more than 96% )and low reflection ratio( less than 0.056/20º C).
6. size (Diax Length) :
47 x 1,500mm, 47 x 1,800mm , 58 x 1,800mm,58 x 2,100mm.