FIELD: reinforcement bars production.
SUBSTANCE: invention relates to a system comprising clamping collar (10) with clamping strip (14) that is adapted to tighten around abutting ends (12A, 12'A) of two tubes (12, 12'). Collar (10) contains retaining tab (30) that has fixing portion (32) by means of which said retaining tab (30) is fixed on strip (14) of the collar and which extends essentially in the axial direction to attachment portion (34) of said retaining tab (30) by which the retaining tab is made with the possibility of connection with first tube (12) near first end (12A) of this tube. Retaining tab (30) has corrugation (36) located between its attachment portion (32) and its fastening portion (34).
EFFECT: invention improves the reliability of tube connections.
14 cl, 6 dwg
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