23 Nov 2025
Regarding the four-sided core-pulling mold design for the coby car: The coby car is a hollow blow-molded product, but the parting surface is complex, making demolding difficult. Shinelytech Design referenced the core-pulling method of injection molds, adding a hydraulic core-pulling design to all four sides. This solved the demolding problem and positioned the parting surface in a location that does not affect the product's aesthetics.
Keywords: coby car
Originally published 23 Nov 2025, updated 23 Nov 2025.
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