采用矩形侧浇口、齿轮齿条脱螺纹机构。
Rectangle-shape side gate and the gear-rack taking off thread mechanism were used.
采用侧浇口。
浇口：外部方向(铰链对面)。流向须爬过衬垫侧。
GATE: external direct (opposite side of the hinge). Flow direction should climb over the gasket side.
浇口：外部方向(铰链对面)。流向须爬过衬垫侧。
GATE: external direct (opposite side of the hinge). Flow direction should climb over the gasket side.
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