PVC电线导管预埋盒暗敷工艺标准.doc
本工艺标准适用于一般民用建筑内的照明系统,在混凝土结构内及砖混结构暗配管敷设工程(不得在高温场所及顶棚内敷设)。
This technology is applicable to general civil building lighting systems, concrete structures and masonry structure with pipe laying dark (but not hot place, and the laying of the roof).