青云翻译

j gj120 - 99 Architectural Foundation Pit technical regulations [s]. Beijing: China Building Industry Press.

J GJ120-99 construction technology of Foundation pit support point [s]. Beijing: China architecture and building press.

J GJ120 - 99 construction hole excavated for building foundation supports and protections technology regulations (S). Beijing: Chinese Construction Industry Publishing house.

120 - 99 J GJ construction pit support S [ ] technical regulations, Beijing: China's construction industry, publishing house.

J GJ120-99 construction technology of Foundation pit support point [s]. Beijing: China architecture and building press.