Safety step intended to be anchored in a concrete wall

摘要: Safety step intended to be anchored in a concrete wall, of the type consisting an aluminium tubular element (1) whose two branches each comprise, vicinity their end, at least one bilateral anti-extraction sleeve (2, 2'). Its ends (7, 7') are covered with ferrule (8) plastic material, comprising on its outer surface sawtooth cutout (10) and terminating end truncated cone (12) which closes off whilst other comprises circular shoulder (13) forming stop, said ferrules being joined by overmoulding 7'), single piece (1).