Liquid Note decene, Note decene high-density liquid, especially for

摘要

Stopper for delivery of a rigid container for delivering a liquid, the liquid medium density and high density, particularly a (1), body (3), shaft means (9), the shaft means (9) elastic actuating means (11) and the body (3) air inlet / outlet means in the container and (13,25,28), valve means for passing air (7), outlet means and air inlet (13, plug and a (26) check valve means being adapted to be disposed between the container interior and 25, 28), and is driven and guided by the pressure difference between the vessel interior (1) External plug (1) is disclosed.