| 摘要 |
A pneumatic valve includes a cylinder having at least one gas port for providing inflow and outflow of a gas; a piston arranged in the cylinder and performing a reciprocating, straight-line movement in response to the inflow and outflow of the gas; a first valve shaft passing through the piston and having a first end portion including a first coupling portion; and a second valve shaft including a second coupling portion and having a first end portion protruding from the cylinder, wherein the second coupling portion is coupled to the first coupling portion.
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