| 摘要 |
The invention relates to a piston for a cartridge, the piston having a medium side and an actuation side, and comprising a piston body, preferably having an at least substantially cylindrical outer shape, a piston cover arranged adjacent to at least a part of the piston body and a valve arranged within the piston body and adjacent to the piston cover, the piston body comprising a centering portion arranged at an outer region of an outer peripheral surface thereof, wherein the centering portion comprises at least one venting means. |
