摘要 |
<p>A gas cylinder (1) internally defining a gas storage space (2) able to be closed by a stop valve (3) comprises a rigid wall (4) made from composite material having a reinforcing layer (5) containing reinforcing fibres and an inner surface (6) and a flexible sealing wall (13) connected to the rigid wall (4) through a mouth (9) and suitable for adhering in pressing contact against the inner surface (6) of the rigid wall (4).</p> |