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GA304-2012单位为菇米%受火面受火面10a)明装b)暗装说明:1,6一一管卡:2,7一支撑件:3,8一一C30混凝土框架;4,9一管道阻火圈:5,o一塑料速J.NE图2管道阻火圈耐火试验安装示意图(垂直)单位为蓝米14001400受火面/500受火面500.17/10,2001500200150020002000a)明装b)喷装说明:1,6一塑料管道,2,7一管道阻火图:3,8一一C30混凝土框架:4,9一一支莽件;5,10—管卡.图3管道阻火圈耐火试验安装示意图(水平)理罚素前网Z.Z心.ET
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