[FCL] cap ferrule (L-type handle)

L-type is a handle with a cap ferrule.
With so easy to hold handle, it does not fall off at the time of removal.

○ is a pipe joint to connect using the gasket and clamp band.
○ large size of the cap ferrule can also have with one hand.
○ force easily added at the time of desorption, can be removed easily be in close contact with the ferrule.
Such as ○ the side, bottom, is ideal for use to fall off easy part.
○ without grounding the cap inner surface, you can put in a stable manner.
○ ferrule type 316L straight bottle [PSO] can be used as a cap for .