| 摘要 |
The present invention refers to a gas-cylinder with an external steel tube (8) with its inferior end (6) with reduced diameter. In tube superior end a plastic socket (10), provided with longitudinal radial buttresses, is pressure-placed, which is provided with two reinforcing annular portions (2, 3) separated a certain distance, in the separation of which buttresses (5) are lagged behind, so that alternated housings (1, 1') are produced in all edge, in which hook-type flappers (9) are received with tube wall semi-punched material. In inferior end (6), an inverted bucket (7) supported by its edge in a flanging (18) of such end (6) is arranged.
|
