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Publication of BE651987ApublicationCriticalpatent/BE651987A/xx
E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires