Assembly including two pipe lengths assembled with an interface joint

A method of manufacturing a pipe, said method comprising:

• selecting a first length of pipe, the first length of pipe being electrically conductive;
• and
• forming a seal on the first pipe length by overmoulding an electrically conductive sealing material on the first pipe length such that the seal is overmoulded in an annular recess of an outer surface of the first pipe length and extends into a bottom hollowed out by a central groove that is centered within an axial length of and extends the entire circumferential length of the annular recess,
• wherein the seal is configured to seal between the first pipe length and a second pipe length when the first pipe length and the second pipe length at least partially overlap, and the annular recess is delimited by two annular shoulders with one of the two shoulders being flush with an end of the first pipe length.