The area of opening of the first through section (46) is greater than that of the second through section (53).

The base has a planar supporting surface with a though opening therein.

A memory card (6) is placed inside the through-cavity (4).

The invention relates to a smart card comprising a card body (1), having a blind cavity (2) open on a first surface and a through-cavity (4) open on both surfaces thereof.

The lock device (1) comprises a cylinder house (3) with a through-opening (15).

The body of the inventive holster has an arch-shaped cross section formed in such a way that a through slot is embodied along the entire length thereof.

The supporting element (10, 10a) closes the mouth opening (7) such that it passes through a switching contact piece (9, 13).

A mouth opening (7) in the cavity (5, 6) is provided with a supporting element (10, 10a).

A folding toothbrush comprising a through opening in the handle and a toothpaste sachet are also described.

A ceramic sleeve (1) comprises a through opening (2) in an axial diection thereof.

The piston (5) of the hydraulic press (1) is provided with a through opening (23) through which passes the protrusion (24).

In each through opening (4) are mounted a protective insert (7) tightly adjoining the walls of the opening (4) and a plate (5).

A bottom wall is provided with a predetermined umber of hinge knuckles with a central through opening through which pins are passed.

The discharge channel (36) is defined within an open-ended discharge tube (14) which extends longitudinally within the cylindrical housing (10).

You will have to choose one or more faces that are "opening out" and specify the wall thickness you want.