Heat-shrinkable film maintains port exposure during heating, while the label re-covers it to limit transport leakage.
This case combines a tube, cover, and one-way valve in an injection-molded member to relieve pressure and ease cleaning.
Translational and rotational coupling pierces the closure to create a sealed, irreversible passage for sterile container mixing.
A snap-connected lever links the cap and spout, enabling repeated opening while reducing lost-cap contamination during disposal.