NRS-12788 | Specification for precast concrete and paving and cladding

This series comprises two copies of a specification for precast concrete and paving and cladding for the Sydney Opera House. One copy (4/7923) contains annotations and corrections.(4/7922-23). 2 copies.

本系列包含两份针对悉尼歌剧院预制混凝土、地面铺装及外立面覆面工程的技术规范副本。其中一份副本（编号4/7923）带有批注与修改痕迹，对应编号范围为4/7922-23，整套系列共计2份副本。