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Fixed Frame Structure of Fire Door Perspective Window
Fixed Frame Structure of Fire Door Perspective Window
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机译:防火门透视窗固定框架结构
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摘要
Disclosed is a design of a fixed frame structure for a viewing window of a fire door. The disclosed fixed frame structure of a viewing window is to provide a fireproof door viewing window that enhances aesthetics and enhances the productability by allowing it to be fixed in the same plane as the front and rear panels without protruding from the front and rear panels of the fire door to the outside.
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