BAOGUANG SOLAR ENERGY COMAPNYspecialized in producing all-glass solar vacuum tubes and solar water heater systems. The factory of company covers 80,000sqm.my company have the most advanced production chain from material borosilicate glass tube—solar vacuum tubes –solar water heater systems. Our annual production capacity reach 100 million tubes and 500,000 sets of solar water heater systems, it has become one of largest professional companies in solar thermal industry.