... is 13-35% Thermal PerformanceHeat transfer coefficient U value can be effectively reduced by HOLLOW glass, if inert gas ... glass, tinted glass, color glazed glass, coated glass, Low-e glass, laminated glass and tempered glass can be composed into various compound products 1. LISEC automatic hollow glass ... , Dark Gray, light Gray 4. Bronze 5. Low-iron 6. Clear etc.Size range 180*350~2500*3500mm (7″*13 ...