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Just about every storey should be ventilated by long term openings at Each individual car parking degree. The openings may be at ceiling level. The aggregate no cost vent space needs to be a minimum of one/forty of that level's ground area, no less than fifty percent of which needs https://ventilation-systems68901.blog-mall.com/30604108/not-known-factual-statements-about-fire-resisting-ductwork

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