Qingdao Allrise Import & Export Co,.Ltd is located in Qingdao Econ & Tech Development Zone and founded in 2008. It is specialized in manufacture and sale the Evacuated Vacuum Tubes.占쏙옙占쏙옙占쏙옙占� ALLRISE has the most advanced automatic production lines for占�acuum sputtering占�lating,We produce more than 10000 tubes each day.Currently we produce coaxial structure evacuated占�ubes with outer diameter 47mm,58mm.and tube length range are available at 1500mm,1600mm,1800mm,1900mm,2100mm.The tubes are made from low emissivity borosilicate glass (glass with a very low iron content that has superior durability and heat resistance ) with an all-glass seal and they employ AL/N on AL selective coating, which enables the use of the whole solar energy spectrum to generate heat.占쏙옙占쏙옙 Allrise is base on the princple of People Oriented, Technology Foremost, Beacus of this ,we win good reputation and be popular with public person.