▶ It plunges material filled in the barrel with no remainder. There are three kinds for highly
viscous materials(H:light blue), low viscous materials(L:white) and for prevent liquids from
3. TOP CAP
▶ It is used to close the top of the barrel when you fill it with liquid in advance or store liquid
4. TIP CAP
▶ It is used to close the bottom of all kinds of barrels.
▶ It is used for sealing the barrel and adapter.
6. BARREL ADAPTER
▶ It connects the barrel with the controller, there is one model for each barrel size.