| 摘要 |
This invention concerns a valve, in particular a ball valve, consisting of a body formed by at least two metal parts (11, 12), which screw onto one another, and where said parts of the body valve have their respective cicular surfaces (13, 14), designed to match together when the parts are assembled. On the circular surfaces (13, 14) there are one or more circular surfaces (13, 14) there are one or more circular coupling parts (15, 16) which fit together tightly, interacting and jointly forming a metal seal between the assembled parts.
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