Protective glass, which can protect people from strong light, strong heat and radiation. There are mainly: glass that absorbs ultraviolet rays and partially visible rays, glass that absorbs infrared rays and partially visible rays, glass that absorbs purple rays, Infrared and most visible glass, glass absorbing x-ray and y-ray, glass absorbing neutron flow, containing a certain amount of cadmium oxide, boron oxide, etc. Protective glass is widely used in high temperature operations such as electric welding and steelmaking, x-ray instruments and other equipment.
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