Gunpla Runner/Tree injection types

injection is the process where the molten plastic is being molded/injected in the metal molds of gunpla parts.

The old style of injection process where they injected multiple colors in one part of the gunpla!
this process was used in some 1985-1993 model kits, but they stopped using it because

 we started seeing this kind of injection process in REAL Grade!
an effective technique where the 3d printer separate each movable parts into each other :D

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image source: bandai hobby center

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