A preform 20 comprises a neck portion 22 having an opening 21, a cylindrical barrel portion 23, and a bottom portion 24 larger in diameter than the barrel portion 23, and has a corner portion 25 at a boundary between the barrel portion 23 and the bottom portion 24.

A medical fluid container includes a container interior and a connecting piece that forms an inner channel. The container interior can be accessed from the outside via the connecting piece. The connecting piece has an outer thread on a connecting piece longitudinal section. The inner channel expands in a substantially conical manner in a region of the outer thread, starting from the container interior, to then preferably transition into a first cylindrical channel shape which extends to a free opening of the connecting piece. A method can be used for producing the medical fluid container from a container blank.

A method of manufacturing a composite container. The method includes providing a paper label, and a preform; providing a molding die equipped with a closed, cylindrical lower mold and an upper mold composed of a plurality of split-mold segments; arranging the paper label in the lower mold; arranging the preform between opened split-mold segments; moving one or both of the lower mold with the paper label and the upper mold with the preform in a direction towards each other to close the molding die; implementing blow-molding on the preform in the molding die; and opening the molding die to release the composite container.

A blowing mold (1) for molding a container (90), in particular a plastic bottle, by blow molding a preform (9) having a neck (93) and a neck ring (92), the blowing mold (1) being adapted to be opened and closed, and comprising at least two parts (25, 26) which, when the blowing mold (1) is closed, form a support (2), or striker plate, adapted to abut against the neck ring (92) of the preform (9); wherein a surface (20) of said support (2) is provided with one or more protrusions (21) adapted to come into contact with the portion (931) of the preform (9) below the neck ring (92), in particular to prevent a rotation thereof.