Shandong Longguang TianXu Solar Energy Co., Ltd is founded in 2002 , which is specializes in borosilicate glass tube, all-glass vacuum tube and solar energy The company occupies more than 270 acres and Subsidiary of Shandong Power Group , which locate in Zhucheng Shandong, China with more than 1500 employees. Its registered capital is 50 million RMB, and the total asset is 2 million RMB. with 4 automatic solar water heater production lines, all fused kiln 7 units(18-26 square of the most advanced solar energy with high borosilicate glass all fused furnace 4 units), 30 vacuum tube production lines, with an annual output of solar water heater production capacity of 100, 000 units. Our main products are borosilicate glass tube . The OD of glass is between 8mm and 230mm. The company is the biggest borosilicate glass factory in China. We can product 100 thousand tons every year. Our products are exported to many countries, such as Japan, India, and USA and other countries.