Couplers, loose spigots and base-plates for use in workung scaffolds and falsework made of steel tubes; requirements and test procedures; german version EN 74:1988— 15 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.
