AirStreamTM ---Radiation heating plays a main role during glass heating, while compressed air is injected into heating furnace, in which it brings certain amount of heat onto glass top surfaces and is helpful for even heating online low-E glass, etc. LD-E AirStream double curvature tempering furnace adopts AirStream heating technology, and it is suitble for tempering top-quality double curvature glass. Glass can be tempered includes: on-line Low-E glass, silk-printed glass, tinted glass, clear glass, etc.