国际预应力协会: fiinternational federation of prestressingfipinternational federation of prestressed concrete and related materials and techniquesinternational federation of prestressed concrete and relat
Specification for structural design of buried prestressed concrete pipeline of water supply and sewerage engineering 给水排水工程埋地管芯缠丝预应力混凝土管和预应力钢筒混凝土管管道结构设计规程