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变形缝材料装置厂周经理抗震型变形缝适应屋顶多方变位优良的防水性能抗御恶劣风雨气候50个百分点位移量铝合金基座固定在屋顶边上,基座上嵌有止水胶条AdaptroofdisplacementExcellentwaterproof、weathertightsystemMinimum50个百分点movementThecontinuousmoisturesealisembedinthecontinuousextrudedaluminumframewhichisfixedontheroofedge