This common type of mold structure with three plates, or large molds need more pleasing mouth spray, or to please the many molding mold. Plastic funnel system usually trapezoid or trapezium correction in the horizontal cross-section to ease work and insert latch pull nozzle when opening mold. The advantage of this type is able to arrange many nozzle into the mold for molding large heart, help to fill quickly and better. However, that can cause overheating for structured materials long fibre and inferior-viscosity.The size of the nozzle important key points, if key points too to con or too small then the trace of it seen very clearly.
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