UL SUBJECT 2502-2005 UL安全性标准.建筑结构用挡火系统和阻火接缝的水密性调查大纲.发布编号:1
UL Standard for Saftey Outline of Investigation for Watertightness of Firestop Systems and Fire Resistive Joints for Building Structures Issue Number: 1
The requirements cover the outline of investigation for UL Standard for Saftey Outline of Investigation for Watertightness of Firestop Systems and Fire Resistive Joints for Building Structures Issue Number: 1 .