K9 glass (also can refer to the K9 material made of glass products) are optical glass, mainly used for optical coating and other fields. K9 glass is an excellent optical material, as a laser film substrate, its anti-laser damage characteristics and capabilities directly affect the performance of high power laser thin films, especially for laser antireflection coatings. K9 glass tempered temperature and pressure after the same as ordinary steel mirror, the processing thickness of up to 50mm.
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