Haining Baoguang Heat Collection Tubes Co., Ltd.( BAOGUANG) established in year 1998 and started the international trade since 2003.After more than 10 years development,BAOGUANG has become the leading manufacturer for solar vacuum tubes in China. BAOGUANG has the most advanced automatic production lines for vacuum sputtering plating, We produce more than 30,000 tubes everyday. Currently we produce co-axial structure evacuated tubes with outer diameter 47mm, 58mm and 70mm, and tube length ...   |