屋頂落水頭ROOF DRAIN14.型號:RDU 2″~4″ 功能:四層組合式、防砂礫堰、隔熱層用 Category: 屋頂落水頭 Description Description 廠製圖 施工圖例 Related products 屋頂落水頭屋頂落水頭ROOF DRAIN1.型號:RDA 2″~5″ Read more 屋頂落水頭屋頂落水頭ROOF DRAIN9.型號:RDM 2″~4″ Read more 屋頂落水頭屋頂落水頭ROOF DRAIN6.型號:RDF 3″~4″ Read more