Mobile access and working towers made of prefabricated elements; materials, dimensions, design loads and safety requirements; german version HD 1004:1992— 22 стр.
91.220 Construction. Including scaffolding, mixers for concrete and mortar, etc. / Строительное оборудование. Включая строительные леса, бетоносмесители и мешалки для строительных растворов и т.д.
