Process which consists in inserting the ends of the pipes 1 into the cavity 2 of a mould 3 which reproduces, in negative form, the complete shape of the terminal, inserting, at the same time, inside the end of the actual pipe 1, in a close-fitting manner and closing it hermetically, a core 4 which reproduces the internal shape of the actual terminal, then moving on to inject into the mould 3 other cores ("noyos") 8, for forming branched openings 9. The resulting pipe 1 forms a one- piece assembly with the terminals secured at its ends. It applies to the formation of conduits for irrigation by means of spraying and the like. <IMAGE>
