Spout assembly, spout assembly manufacturing apparatus and package with spout assembly

A package with a spout assembly comprising:

• a package;
• a spout comprising an outer tube located outside said package, and a base attached to an inner surface of said package;
• and
• a cap coaxial with said outer tube and separably connected to an extremity of said outer tube through a thin wall in a position in which said cap is insertable into said outer tube;
• said cap being separable from said outer tube and insertable into said outer tube to seal said spout;
• wherein
• said cap further comprising a step seatable on the extremity of said outer tube when said cap is inserted into said outer tube, and a distal end portion of said cap further comprising a circumferential protrusion engageable with an inner circumference of said outer tube when said cap is inserted in said outer tube;
• and
• said base comprising a pair of attaching plates whose surfaces extend in substantially the same direction as the axis of the spout, and an inner tube formed between said pair of attaching plates and connected to the outer tube, wherein respective opposite lateral ends of said pair of attaching plates are joined together, and the inner tube passes between said attaching plates between said opposite lateral ends thereof.