ACHT ultra clear glass in manufacturing chooses high purity silica sand, transmittance of which can reach 91.6%. Ultra clear glass combines all the advantages of float glass , such as the machining performance, the excellent physical, mechanical and optical properties, at the same time, it acquires some unique merits that the normal clear float glass does not have, for example, low-e energy saving effect is good, colored glaze, beautiful and elegant, etc.