with the development of architecture aesthetics,the requirements for architectural glass is becoming higher and higher.Glass should supply not only proper lighting and good sight shading functions,but also certain level of energy saving performance and colorful decoration effects.Heat-reflective coated glass is the solution.It is also called solor control glass or sunlight shading glass which is got by sputtering special materials to high quality float glass under the vacuum environment .Depending on different materials to besputtered and different layer combination.Solar energydirect radiation reflectance,transmisssion,absorbtion and color of coatings can be controled accuratel.ZNG takes the lead in developing and producing large quantity of off-line solar glass which can be reprocessable,for example ,tempering and benting.