a) Pros:
- Ease of processing and sanitation.
- Can be arranged at any position on the parting surface.
b) Disadvantages
- Must be designed so that the slotted exhaust air from escaping but not plastic flowing out of the cavity.
- Depending on the speed and flow rate when the exhaust system layout.
- No layout exhaust system on details too thin, ribbed (rib), groove penguin (blind holes).
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