Tempest EMC shielding glass is a vital window shielding materials to realize TEMPEST and is used for solving anti-electromagnetic interference and tempest among computer system and equipments. With the implementation and promotion of EMC standards, EMC shielding glass serial products has been widely applied to high & new technological industries such as aviation and aerospace, nuclear, satellite, security communication, military, artillery, ordnance, electronics and shipbuilding, etc. EMC shielding glass is also used for digital and image display window of computer display terminal, radar indicator, printer, spectrum analyzer and precision instruments and meters, electronic shelter and observation window of shielded enclosure, which meets various needs of EMC for shielding materials of display terminal window.