What are the central feeding systems for extruding plastics?

1, one machine with one pipe: one injection molding machine in KOS corresponds to one raw material pipe;

2. One machine with two pipes: one injection molding machine corresponds to two raw material pipes;

3. One machine, one pipe and one main material pipe: one injection molding machine corresponds to one raw material pipe, and one raw material corresponds to one pipe to supply multiple injection molding machines;

4. Main material pipe: one material is supplied to multiple injection molding machines by one pipe.