| 摘要 |
PURPOSE: A ventilating structure is provided to improve the working condition and to improve the economic property by simplifying an air passage to circulate air of external wall of a curtain wall. CONSTITUTION: Fixing frame materials(10) have external and inner flanges(11,12) to be faced each other. The fixing frame materials have a sectional shape to connect the flanges by one connecting web(13). Vent holes(14) are punched in the connecting webs. Thereby, an air passage is formed simply.
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