means of a pin not shown which is introduced into the tubular body 2 u2032 through the outwardly directed bending of the tubular body 2 in the deformation section 11 an accumulation of material 12 is created between the deformation section 11 and the component 3 which accumulation of material improves or respectively intensifies the sealing effect of the seal of the opening 6 realized by the plastic layer 8 in the case of the left hand tubular body 2 u2032 in fig2 the deformation takes place in the connecting section 7 in that the connection section 7 is widened in the opening 6 hereby an outwardly directed curvature 13 of the tubular body 2 u2033 occurs in the associated opening 6 in the connecting section 7 and a corresponding curvature 13 of the component 3 in the associated opening 6 which likewise lead to an accumulation of material 12 this accumulation of material 12 is arranged in the associated opening 6 and improves the sealing effect of the seal brought about with the plastic layer 8 the respective plastic layer 8 has in addition the advantage that it creates a certain flexibility between the associated tubular body 2 and the component 3 this means that in particular thermal stresses can be reduced between the tubular body 2 produced from a metallic material and the component 3 produced from plastic in addition the tubular bodies 2 are movable relative to the component 3 in a region predetermined in particular by the provision of the plastic layer 8 this means that a rigid connection between the respective tubular body 2 and the component 3 is prevented hereby in particular tolerances of the arrangement 1 can be equalized in fig3 a modular system 14 is shown to the.